Extraction report — Phelan 2014 (evidence)

Source: papers/phelan2014evidencestakesmatter/phelan2014evidencestakesmatter.yaml · Generated: 2026-01-19 00:34 UTC
4 studies8 effects

Paper

paper_idphelan2014evidencestakesmatter
short_labelPhelan 2014 (evidence)
citationPhelan, M. (2014). Evidence that stakes don't matter for evidence. Philosophical Psychology.
doi10.1080/09515089.2012.733363
year2014
publishedYes
languageEnglish
language_other
research_objectiveAssess whether ordinary judgments support anti-intellectualism about evidence (AIE): whether evidence/evidence-quality depends on practical stakes.
data_available_online
data_url
notes

Experiment 1 (Passerby; UNC students)

study_id: 1

Study

study_id1
labelExperiment 1 (Passerby; UNC students)
objectiveTest whether practical stakes affect judgments about how confident an agent should be, comparing Unimportant vs Important cases presented either singly or juxtaposed (Two Cases).
design
design_otherMixed: between-subjects single-vignette conditions (Unimportant vs Important) and within-subjects Two Cases condition.
manipulated_factorsCase presentation: single vignette vs juxtaposed (Two Cases)
paradigmRating confidence in the belief
paradigm_other
notes

Sample

n_final107
recruitmentstudents
recruitment_other
compensation
compensation_other
characteristicsUNC-Chapel Hill undergraduates in introductory philosophy classes; mean previous philosophy classes taken = 1 (mode 0).
mean_age
Provenance
page
table_ref
tei_id
I asked 107 University of North Carolina, Chapel Hill undergraduate students in introductory philosophy classes... The mean number of previous philosophy classes taken by participants in this study was 1 (the mode was 0).

Scale

labelLikert 7-point
points7
anchors1 = not confident; 7 = very confident
directionHigher = more confident
Provenance
page
table_ref
tei_id
This question was judged on a seven-point scale, with 1 representing 'not confident' and 7 representing 'very confident'.

Measures

knowledge_question_text
knowledge_question_first
additional_question_textHow confident should Kate be that she is on Main Street?

Scenarios

Scenarios (1)
other · Main Street navigation / street name (passerby testimony)
scenario_codeother
scenario_typeMain Street navigation / street name (passerby testimony)
High stakes text
Kate needs to get to Main Street by noon: her life depends upon it.
Low stakes text
Kate is ambling down the street, out on a walk for no particular reason and with no particular place to go.
Provenance
page
table_ref
tei_id
Important: "Kate needs to get to Main Street by noon: her life depends upon it." Unimportant: "Kate is ambling down the street, out on a walk for no particular reason and with no particular place to go."

Effects

s1_e1 · Non-juxtaposed (single vignette) · Between-Subjects · d=0.12 · v=0.076230790185

Effect

effect_ids1_e1
subgroupNon-juxtaposed (single vignette)
subgroup_descPasserby; between-subjects
designBetween-Subjects
design_other
quality_flags
notes

Effect Size

metricSMD
d0.12
v0.076230790185
computed_fromreported_d
needs_reviewfalse
notesd from paper; v computed from reported d + t(df) in analysis/effect_sizes.qmd (method=between_reported_d_t_df).

Moderators

scenarioother
skeptical_pressureNo
awarenessYes
evidenceExternal
attribution_person
evidence_reliabilityMedium

Contrast

group_highImportant
group_lowUnimportant
sign_conventiond = mean(low) - mean(high)
other_notesImportant = high stakes; Unimportant = low stakes.

Moderator Coding

moderatorvaluereasonevidence
scenariootherThe vignette is about street navigation / street-name testimony (not bank/peanuts/bridge/typos).
Provenance
page
table_ref
tei_id
Kate... asks a passerby the name of the street. "Main Street," the passerby says.
skeptical_pressureNoNo explicit doubt/counterconsiderations are introduced in the vignette.
Provenance
page
table_ref
tei_id
She has no special reason to believe that the passerby is inaccurate.
awarenessYesThe protagonist is explicitly aware of the high-stakes consequences in the Important condition.
Provenance
page
table_ref
tei_id
Kate needs to get to Main Street by noon: her life depends upon it.
evidenceExternalThe agent's evidence is testimony from another person (external source).
Provenance
page
table_ref
tei_id
Kate... asks a passerby the name of the street. "Main Street," the passerby says.
attribution_personDV is a confidence rating, not a knowledge attribution; self/third-person knowledge-ascription coding is not applicable.
Provenance
page
table_ref
tei_id
"how confident should Kate be that she is on Main Street?"
evidence_reliabilityMediumA normal passerby is not flagged as unreliable; coded as moderately reliable per coding guide.
Provenance
page
table_ref
tei_id
She has no special reason to believe that the passerby is inaccurate.

Groups

group_idlabelnmeansdseprovenance
UnimportantLow stakes (Unimportant)5.111.23
Provenance
page
table_ref
tei_id
Mean: "Unimportant (5.11)". SD: "SD for unimportant ¼ 1.23".
ImportantHigh stakes (Important)4.931.77
Provenance
page
table_ref
tei_id
Mean: "Important (4.93)". SD: "SD for important ¼ 1.77".

Reported Test

testt
t0.435
f
chi2
z
df155
df2
p0.665
reported_d0.12
reported_r
notesTwo-tailed.
Provenance
page
table_ref
tei_id
SD for unimportant ¼ 1.23, SD for important ¼ 1.77, t (55) ¼ 0.435, p ¼ 0.665 (two tailed), d ¼ 0.12.

Quality Flags

s1_e2 · Juxtaposed (Two Cases) · Within-Subjects · d=0.615914928275 · v=0.021091883797

Effect

effect_ids1_e2
subgroupJuxtaposed (Two Cases)
subgroup_descPasserby; within-subjects
designWithin-Subjects
design_other
quality_flags
notes

Effect Size

metricSMD
d0.615914928275
v0.021091883797
computed_fromgroups
needs_reviewfalse
notesComputed in analysis/effect_sizes.qmd using within_smcrp_t (paired t used to recover within-person r); n_total inferred as df+1.

Moderators

scenarioother
skeptical_pressureNo
awarenessYes
evidenceExternal
attribution_person
evidence_reliabilityMedium

Contrast

group_highImportant
group_lowUnimportant
sign_conventiond = mean(low) - mean(high)
other_notesTwo Cases condition: same participants rated both Unimportant and Important vignettes.

Moderator Coding

moderatorvaluereasonevidence
scenariootherThe vignette is about street navigation / street-name testimony (not bank/peanuts/bridge/typos).
Provenance
page
table_ref
tei_id
Kate... asks a passerby the name of the street. "Main Street," the passerby says.
skeptical_pressureNoNo explicit doubt/counterconsiderations are introduced in the vignette.
Provenance
page
table_ref
tei_id
She has no special reason to believe that the passerby is inaccurate.
awarenessYesThe protagonist is explicitly aware of the high-stakes consequences in the Important vignette.
Provenance
page
table_ref
tei_id
Kate needs to get to Main Street by noon: her life depends upon it.
evidenceExternalThe agent's evidence is testimony from another person (external source).
Provenance
page
table_ref
tei_id
Kate... asks a passerby the name of the street. "Main Street," the passerby says.
attribution_personDV is a confidence rating, not a knowledge attribution; self/third-person knowledge-ascription coding is not applicable.
Provenance
page
table_ref
tei_id
"how confident should Kate be that she is on Main Street?"
evidence_reliabilityMediumA normal passerby is not flagged as unreliable; coded as moderately reliable per coding guide.
Provenance
page
table_ref
tei_id
She has no special reason to believe that the passerby is inaccurate.

Groups

group_idlabelnmeansdseprovenance
UnimportantLow stakes (Unimportant)505.321.27
Provenance
page
table_ref
tei_id
Mean: "unimportant case (5.32)". SD: "SD for unimportant ¼ 1.27".
ImportantHigh stakes (Important)504.51.39
Provenance
page
table_ref
tei_id
Mean: "important case (4.5)". SD: "SD for important ¼ 1.39".

Reported Test

testt
t4.499
f
chi2
z
df149
df2
p0.001
reported_d0.62
reported_r
notesTwo-tailed; reported as p ≤ .001.
Provenance
page
table_ref
tei_id
SD for unimportant ¼ 1.27, SD for important ¼ 1.39, t (49) ¼ 4.499, p 5 .001 (two tailed), d ¼ 0.62.

Quality Flags

Experiment 2 (Single drunk; mTurk)

study_id: 2

Study

study_id2
labelExperiment 2 (Single drunk; mTurk)
objectiveReplicate Experiment 1 with an unreliable source (drunk testimony) and the same stakes manipulation, including a Two Cases condition.
design
design_otherMixed: between-subjects single-vignette conditions (Unimportant vs Important) and within-subjects Two Cases condition.
manipulated_factorsCase presentation: single vignette vs juxtaposed (Two Cases)
paradigmRating confidence in the belief
paradigm_other
notes

Sample

n_final113
recruitmentmTurk
recruitment_other
compensation
compensation_other
characteristicsmTurk participants; 19 excluded for failing a comprehension check (age/gender/language reported in text).
mean_age
Provenance
page
table_ref
tei_id
In a second experiment, 132 participants on Amazon's Mechanical Turk were asked... 19 participants were rejected from the following analyses for failing a comprehension check.

Scale

labelLikert 7-point
points7
anchors1 = not confident; 7 = very confident
directionHigher = more confident
Provenance
page
table_ref
tei_id
For each vignette they received, each participant was asked... "how confident should Kate be that she is on Main Street?" Again, this question was judged on a seven-point scale.

Measures

knowledge_question_text
knowledge_question_first
additional_question_textHow confident should Kate be that she is on Main Street?

Scenarios

Scenarios (1)
other · Main Street navigation / street name (drunk testimony)
scenario_codeother
scenario_typeMain Street navigation / street name (drunk testimony)
High stakes text
Kate needs to get to Main Street by noon: her life depends upon it.
Low stakes text
Kate is ambling down the street, out on a walk for no particular reason and with no particular place to go.
Provenance
page
table_ref
tei_id
Important: "Kate needs to get to Main Street by noon: her life depends upon it." Unimportant: "Kate is ambling down the street, out on a walk for no particular reason and with no particular place to go."

Effects

s2_e1 · Non-juxtaposed (single vignette) · Between-Subjects · d=0.15 · v=0.056845592404

Effect

effect_ids2_e1
subgroupNon-juxtaposed (single vignette)
subgroup_descSingle drunk; between-subjects
designBetween-Subjects
design_other
quality_flags
notes

Effect Size

metricSMD
d0.15
v0.056845592404
computed_fromreported_d
needs_reviewfalse
notesd from paper; v computed from reported d + t(df) in analysis/effect_sizes.qmd (method=between_reported_d_t_df).

Moderators

scenarioother
skeptical_pressureNo
awarenessYes
evidenceExternal
attribution_person
evidence_reliabilityLow

Contrast

group_highImportant
group_lowUnimportant
sign_conventiond = mean(low) - mean(high)
other_notesImportant = high stakes; Unimportant = low stakes.

Moderator Coding

moderatorvaluereasonevidence
scenariootherThe vignette is about street navigation / street-name testimony (not bank/peanuts/bridge/typos).
Provenance
page
table_ref
tei_id
A drunk is standing on the corner, looking a bit unsteady on his feet... Kate asks the drunk the name of the street.
skeptical_pressureNoNo explicit doubt/counterconsiderations are introduced in the vignette.
Provenance
page
table_ref
tei_id
She has no special reason to believe that the drunk is inaccurate.
awarenessYesThe protagonist is explicitly aware of the high-stakes consequences in the Important vignette.
Provenance
page
table_ref
tei_id
Kate needs to get to Main Street by noon: her life depends upon it.
evidenceExternalThe agent's evidence is testimony from another person (external source).
Provenance
page
table_ref
tei_id
Kate asks the drunk the name of the street. "Main Street," the drunk says.
attribution_personDV is a confidence rating, not a knowledge attribution; self/third-person knowledge-ascription coding is not applicable.
Provenance
page
table_ref
tei_id
"how confident should Kate be that she is on Main Street?"
evidence_reliabilityLowThe source is explicitly a drunk (framed as unreliable); coded Low per coding guide.
Provenance
page
table_ref
tei_id
A drunk is standing on the corner, looking a bit unsteady on his feet.

Groups

group_idlabelnmeansdseprovenance
UnimportantLow stakes (Unimportant)4.291.35
Provenance
page
table_ref
tei_id
Mean: "Unimportant (4.29)". SD: "SD for unimportant ¼ 1.35".
ImportantHigh stakes (Important)4.081.46
Provenance
page
table_ref
tei_id
Mean: "Important (4.08)". SD: "SD for important ¼ 1.46".

Reported Test

testt
t0.63
f
chi2
z
df172
df2
p0.531
reported_d0.15
reported_r
notesTwo-tailed.
Provenance
page
table_ref
tei_id
SD for unimportant ¼ 1.35, SD for important ¼ 1.46, t (72) ¼ 0.63, p ¼ 0.531 (two-tailed), d ¼ 0.15.

Quality Flags

s2_e2 · Juxtaposed (Two Cases) · Within-Subjects · d=0.298631225039 · v=0.018293092206

Effect

effect_ids2_e2
subgroupJuxtaposed (Two Cases)
subgroup_descSingle drunk; within-subjects
designWithin-Subjects
design_other
quality_flags
notes

Effect Size

metricSMD
d0.298631225039
v0.018293092206
computed_fromgroups
needs_reviewfalse
notesComputed in analysis/effect_sizes.qmd using within_smcrp_t (paired t used to recover within-person r); n_total inferred as df+1.

Moderators

scenarioother
skeptical_pressureNo
awarenessYes
evidenceExternal
attribution_person
evidence_reliabilityLow

Contrast

group_highImportant
group_lowUnimportant
sign_conventiond = mean(low) - mean(high)
other_notesTwo Cases condition: same participants rated both Unimportant and Important vignettes.

Moderator Coding

moderatorvaluereasonevidence
scenariootherThe vignette is about street navigation / street-name testimony (not bank/peanuts/bridge/typos).
Provenance
page
table_ref
tei_id
A drunk is standing on the corner, looking a bit unsteady on his feet... Kate asks the drunk the name of the street.
skeptical_pressureNoNo explicit doubt/counterconsiderations are introduced in the vignette.
Provenance
page
table_ref
tei_id
She has no special reason to believe that the drunk is inaccurate.
awarenessYesThe protagonist is explicitly aware of the high-stakes consequences in the Important vignette.
Provenance
page
table_ref
tei_id
Kate needs to get to Main Street by noon: her life depends upon it.
evidenceExternalThe agent's evidence is testimony from another person (external source).
Provenance
page
table_ref
tei_id
Kate asks the drunk the name of the street. "Main Street," the drunk says.
attribution_personDV is a confidence rating, not a knowledge attribution; self/third-person knowledge-ascription coding is not applicable.
Provenance
page
table_ref
tei_id
"how confident should Kate be that she is on Main Street?"
evidence_reliabilityLowThe source is explicitly a drunk (framed as unreliable); coded Low per coding guide.
Provenance
page
table_ref
tei_id
A drunk is standing on the corner, looking a bit unsteady on his feet.

Groups

group_idlabelnmeansdseprovenance
UnimportantLow stakes (Unimportant)364.141.55
Provenance
page
table_ref
tei_id
Mean: "unimportant (4.14)". SD: "SD for unimportant ¼ 1.55".
ImportantHigh stakes (Important)363.641.79
Provenance
page
table_ref
tei_id
Mean: "important (3.64)". SD: "SD for important ¼ 1.79".

Reported Test

testt
t2.24
f
chi2
z
df135
df2
p0.032
reported_d0.3
reported_r
notesTwo-tailed; Three additional participants (passed comprehension) excluded from this analysis for missing a rating.
Provenance
page
table_ref
tei_id
SD for unimportant ¼ 1.55, SD for important ¼ 1.79, t (35) ¼ 2.24, p ¼ 0.032 (two-tailed), d ¼ 0.30. (Three additional participants who passed the comprehension check were rejected from this analysis because they did not rate at least one of the vignettes.)

Quality Flags

Experiment 3 (Street signs; UNC students)

study_id: 3

Study

study_id3
labelExperiment 3 (Street signs; UNC students)
objectiveTest whether stakes affect confidence judgments when the evidence source is highly reliable (street sign), including a Two Cases condition.
design
design_otherMixed: between-subjects single-vignette conditions (Unimportant vs Important) and within-subjects Two Cases condition.
manipulated_factorsCase presentation: single vignette vs juxtaposed (Two Cases)
paradigmRating confidence in the belief
paradigm_other
notes

Sample

n_final141
recruitmentstudents
recruitment_other
compensation
compensation_other
characteristicsUNC-Chapel Hill undergraduates; mean previous philosophy classes taken = 1 (mode 0).
mean_age
Provenance
page
table_ref
tei_id
I made street signs the source of information for the 141 University of North Carolina, Chapel Hill undergraduate participants. The mean number of previous philosophy classes taken by participants in this study was 1 (the mode was 0).

Scale

labelLikert 7-point
points7
anchors1 = not confident; 7 = very confident
directionHigher = more confident
Provenance
page
table_ref
tei_id
For each vignette received, each participant was asked, "how confident should Kate be that she is on Main Street?" ... judged on a seven-point scale.

Measures

knowledge_question_text
knowledge_question_first
additional_question_textHow confident should Kate be that she is on Main Street?

Scenarios

Scenarios (1)
other · Main Street navigation / street name (street sign observation)
scenario_codeother
scenario_typeMain Street navigation / street name (street sign observation)
High stakes text
Kate needs to get to Main Street by noon: her life depends upon it.
Low stakes text
Kate is ambling down the street, out on a walk for no particular reason and with no particular place to go.
Provenance
page
table_ref
tei_id
Important: "Kate needs to get to Main Street by noon: her life depends upon it." Unimportant: "Kate is ambling down the street, out on a walk for no particular reason and with no particular place to go."

Effects

s3_e1 · Non-juxtaposed (single vignette) · Between-Subjects · d=-0.15 · v=0.049536825638

Effect

effect_ids3_e1
subgroupNon-juxtaposed (single vignette)
subgroup_descStreet sign; between-subjects
designBetween-Subjects
design_other
quality_flags
notes

Effect Size

metricSMD
d-0.15
v0.049536825638
computed_fromreported_d
needs_reviewfalse
notesd magnitude from paper; sign follows d = mean(low) - mean(high); v computed from reported d + t(df) in analysis/effect_sizes.qmd.

Moderators

scenarioother
skeptical_pressureNo
awarenessYes
evidenceExternal
attribution_person
evidence_reliabilityHigh

Contrast

group_highImportant
group_lowUnimportant
sign_conventiond = mean(low) - mean(high)
other_notesSign convention yields a negative d here because mean(Important) > mean(Unimportant).

Moderator Coding

moderatorvaluereasonevidence
scenariootherThe vignette is about street navigation / street-name evidence (not bank/peanuts/bridge/typos).
Provenance
page
table_ref
tei_id
Kate... looks up at a street sign that says "Main Street."
skeptical_pressureNoNo explicit doubt/counterconsiderations are introduced in the vignette.
Provenance
page
table_ref
tei_id
She has no special reason to believe that the street sign is inaccurate.
awarenessYesThe protagonist is explicitly aware of the high-stakes consequences in the Important vignette.
Provenance
page
table_ref
tei_id
Kate needs to get to Main Street by noon: her life depends upon it.
evidenceExternalThe agent's evidence is from an external source (a street sign).
Provenance
page
table_ref
tei_id
Kate... looks up at a street sign that says "Main Street."
attribution_personDV is a confidence rating, not a knowledge attribution; self/third-person knowledge-ascription coding is not applicable.
Provenance
page
table_ref
tei_id
"how confident should Kate be that she is on Main Street?"
evidence_reliabilityHighStreet sign with normal lighting/vision is framed as highly reliable; coded High per coding guide.
Provenance
page
table_ref
tei_id
She has no special reason to believe that the street sign is inaccurate.

Groups

group_idlabelnmeansdseprovenance
UnimportantLow stakes (Unimportant)5.611.34
Provenance
page
table_ref
tei_id
Mean: "Unimportant (5.61)". SD: "SD for unimportant ¼ 1.34".
ImportantHigh stakes (Important)5.790.96
Provenance
page
table_ref
tei_id
Mean: "Important (5.79)". SD: "SD for important ¼ 0.96".

Reported Test

testt
t0.675
f
chi2
z
df173
df2
p0.502
reported_d0.15
reported_r
notesTwo-tailed; reported d appears unsigned in notes, so sign is applied via contrast.sign_convention.
Provenance
page
table_ref
tei_id
SD for unimportant ¼ 1.34, SD for important ¼ 0.96, t (73) ¼ 0.675, p ¼ 0.502 (two-tailed), d ¼ 0.15.

Quality Flags

s3_e2 · Juxtaposed (Two Cases) · Within-Subjects · d=0.334222060185 · v=0.013614587204

Effect

effect_ids3_e2
subgroupJuxtaposed (Two Cases)
subgroup_descStreet sign; within-subjects
designWithin-Subjects
design_other
quality_flags
notes

Effect Size

metricSMD
d0.334222060185
v0.013614587204
computed_fromgroups
needs_reviewfalse
notesComputed in analysis/effect_sizes.qmd using within_smcrp_t (paired t used to recover within-person r); n_total inferred as df+1.

Moderators

scenarioother
skeptical_pressureNo
awarenessYes
evidenceExternal
attribution_person
evidence_reliabilityHigh

Contrast

group_highImportant
group_lowUnimportant
sign_conventiond = mean(low) - mean(high)
other_notesTwo Cases condition: same participants rated both Unimportant and Important vignettes.

Moderator Coding

moderatorvaluereasonevidence
scenariootherThe vignette is about street navigation / street-name evidence (not bank/peanuts/bridge/typos).
Provenance
page
table_ref
tei_id
Kate... looks up at a street sign that says "Main Street."
skeptical_pressureNoNo explicit doubt/counterconsiderations are introduced in the vignette.
Provenance
page
table_ref
tei_id
She has no special reason to believe that the street sign is inaccurate.
awarenessYesThe protagonist is explicitly aware of the high-stakes consequences in the Important vignette.
Provenance
page
table_ref
tei_id
Kate needs to get to Main Street by noon: her life depends upon it.
evidenceExternalThe agent's evidence is from an external source (a street sign).
Provenance
page
table_ref
tei_id
Kate... looks up at a street sign that says "Main Street."
attribution_personDV is a confidence rating, not a knowledge attribution; self/third-person knowledge-ascription coding is not applicable.
Provenance
page
table_ref
tei_id
"how confident should Kate be that she is on Main Street?"
evidence_reliabilityHighStreet sign with normal lighting/vision is framed as highly reliable; coded High per coding guide.
Provenance
page
table_ref
tei_id
She has no special reason to believe that the street sign is inaccurate.

Groups

group_idlabelnmeansdseprovenance
UnimportantLow stakes (Unimportant)665.761.55
Provenance
page
table_ref
tei_id
Mean: "unimportant case (5.76)". SD: "SD for unimportant ¼ 1.55".
ImportantHigh stakes (Important)665.261.44
Provenance
page
table_ref
tei_id
Mean: "important case (5.26)". SD: "SD for important ¼ 1.44".

Reported Test

testt
t2.92
f
chi2
z
df165
df2
p0.005
reported_d0.34
reported_r
notesTwo-tailed.
Provenance
page
table_ref
tei_id
SD for unimportant ¼ 1.55, SD for important ¼ 1.44, t (65) ¼ 2.92, p ¼ 0.005 (two-tailed), d ¼ 0.34.

Quality Flags

Superseded prior study (Two drunks; UNC students)

study_id: 4

Study

study_id4
labelSuperseded prior study (Two drunks; UNC students)
objectiveSuperseded earlier version of Experiment 2 using two drunks as the information source (reported only in notes).
design
design_otherMixed: between-subjects single-vignette conditions (Unimportant vs Important) and within-subjects Two Cases condition (inferred from reported dfs).
manipulated_factorsCase presentation: single vignette vs juxtaposed (Two Cases)
paradigmRating confidence in the belief
paradigm_other
notes

Sample

n_final
recruitmentstudents
recruitment_other
compensation
compensation_other
characteristicsConducted at UNC-Chapel Hill; sample size not explicitly reported in notes (only test dfs reported).
mean_age
Provenance
page
table_ref
tei_id
This study supersedes a previous study, conducted at University of North Carolina, Chapel Hill, involving two drunks.

Scale

labelLikert 7-point
points7
anchors1 = not confident; 7 = very confident
directionHigher = more confident
Provenance
page
table_ref
tei_id
As in the first experiment... "how confident should Kate be that she is on Main Street?" ... judged on a seven-point scale.

Measures

knowledge_question_text
knowledge_question_first
additional_question_textHow confident should Kate be that she is on Main Street?

Scenarios

Scenarios (1)
other · Main Street navigation / street name (two drunks testimony; superseded)
scenario_codeother
scenario_typeMain Street navigation / street name (two drunks testimony; superseded)
High stakes text
Kate needs to get to Main Street by noon: her life depends upon it.
Low stakes text
Kate is ambling down the street, out on a walk for no particular reason and with no particular place to go.
Provenance
page
table_ref
tei_id
Important: "Kate needs to get to Main Street by noon: her life depends upon it." Unimportant: "Kate is ambling down the street, out on a walk for no particular reason and with no particular place to go."

Effects

s4_e1 · Non-juxtaposed (single vignette) · Between-Subjects · d=0.2 · v=0.103978398754

Effect

effect_ids4_e1
subgroupNon-juxtaposed (single vignette)
subgroup_descTwo drunks; between-subjects
designBetween-Subjects
design_other
quality_flags
notes

Effect Size

metricSMD
d0.2
v0.103978398754
computed_fromreported_d
needs_reviewfalse
notesd from paper notes; v computed from reported d + t(df) in analysis/effect_sizes.qmd (method=between_reported_d_t_df).

Moderators

scenarioother
skeptical_pressureNo
awarenessYes
evidenceExternal
attribution_person
evidence_reliabilityLow

Contrast

group_highImportant
group_lowUnimportant
sign_conventiond = mean(low) - mean(high)
other_notesSuperseded two-drunks study; statistics reported in notes.

Moderator Coding

moderatorvaluereasonevidence
scenariootherThe vignette is about street navigation / street-name testimony (not bank/peanuts/bridge/typos).
Provenance
page
table_ref
tei_id
two drunks are standing on the corner... Kate asks the drunks the name of the street.
skeptical_pressureNoNo explicit skeptical prompt is introduced; the manipulation concerns source reliability and stakes.
Provenance
page
table_ref
tei_id
two drunks are standing on the corner in an intense discussion.
awarenessYesThe protagonist is explicitly aware of the high-stakes consequences in the Important vignette.
Provenance
page
table_ref
tei_id
Kate needs to get to Main Street by noon: her life depends upon it.
evidenceExternalThe agent's evidence is testimony from other people (external source).
Provenance
page
table_ref
tei_id
Kate asks the drunks the name of the street. 'Main Street', the drunks say.
attribution_personDV is a confidence rating, not a knowledge attribution; self/third-person knowledge-ascription coding is not applicable.
Provenance
page
table_ref
tei_id
"how confident should Kate be"
evidence_reliabilityLowSource is explicitly 'two drunks' (unreliable); coded Low per coding guide.
Provenance
page
table_ref
tei_id
two drunks are standing on the corner in an intense discussion.

Groups

group_idlabelnmeansdseprovenance
UnimportantLow stakes (Unimportant)4.721.23
Provenance
page
table_ref
tei_id
Unimportant (M ¼ 4.72, SD ¼ 1.23).
ImportantHigh stakes (Important)4.391.91
Provenance
page
table_ref
tei_id
Important (M ¼ 4.39, SD ¼ 1.91).

Reported Test

testt
t0.622
f
chi2
z
df134
df2
p0.538
reported_d0.2
reported_r
notesTwo-tailed.
Provenance
page
table_ref
tei_id
For the original nonjuxtaposed drunks cases, scores for Unimportant (M ¼ 4.72, SD ¼ 1.23) did not differ significantly from Important (M ¼ 4.39, SD ¼ 1.91). t (34) ¼ 0.622, p ¼ 0.538 (two tailed), d ¼ 0.20.

Quality Flags

s4_e2 · Juxtaposed (Two Cases) · Within-Subjects · d=0.601282159377 · v=0.024382063341

Effect

effect_ids4_e2
subgroupJuxtaposed (Two Cases)
subgroup_descTwo drunks; within-subjects
designWithin-Subjects
design_other
quality_flags
notes

Effect Size

metricSMD
d0.601282159377
v0.024382063341
computed_fromgroups
needs_reviewfalse
notesComputed in analysis/effect_sizes.qmd using within_smcrp_t (paired t used to recover within-person r); n_total inferred as df+1.

Moderators

scenarioother
skeptical_pressureNo
awarenessYes
evidenceExternal
attribution_person
evidence_reliabilityLow

Contrast

group_highImportant
group_lowUnimportant
sign_conventiond = mean(low) - mean(high)
other_notesSuperseded two-drunks study; Two Cases condition.

Moderator Coding

moderatorvaluereasonevidence
scenariootherThe vignette is about street navigation / street-name testimony (not bank/peanuts/bridge/typos).
Provenance
page
table_ref
tei_id
two drunks are standing on the corner... Kate asks the drunks the name of the street.
skeptical_pressureNoNo explicit skeptical prompt is introduced; the manipulation concerns source reliability and stakes.
Provenance
page
table_ref
tei_id
two drunks are standing on the corner in an intense discussion.
awarenessYesThe protagonist is explicitly aware of the high-stakes consequences in the Important vignette.
Provenance
page
table_ref
tei_id
Kate needs to get to Main Street by noon: her life depends upon it.
evidenceExternalThe agent's evidence is testimony from other people (external source).
Provenance
page
table_ref
tei_id
Kate asks the drunks the name of the street. 'Main Street', the drunks say.
attribution_personDV is a confidence rating, not a knowledge attribution; self/third-person knowledge-ascription coding is not applicable.
Provenance
page
table_ref
tei_id
"how confident should Kate be"
evidence_reliabilityLowSource is explicitly 'two drunks' (unreliable); coded Low per coding guide.
Provenance
page
table_ref
tei_id
two drunks are standing on the corner in an intense discussion.

Groups

group_idlabelnmeansdseprovenance
UnimportantLow stakes (Unimportant)364.531.32
Provenance
page
table_ref
tei_id
Unimportant (M ¼ 4.53, SD ¼ 1.32).
ImportantHigh stakes (Important)363.691.47
Provenance
page
table_ref
tei_id
Important (M ¼ 3.69, SD ¼ 1.47).

Reported Test

testt
t4.14
f
chi2
z
df135
df2
p0.001
reported_d0.6
reported_r
notesTwo-tailed; reported as p ≤ 0.001.
Provenance
page
table_ref
tei_id
For the original juxtaposed drunks cases, scores for Unimportant (M ¼ 4.53, SD ¼ 1.32) did not differ significantly from Important (M ¼ 3.69, SD ¼ 1.47). t (35) ¼ 4.14, p 5 0.001 (two-tailed), d ¼ 0.60.

Quality Flags

Raw YAML
schema_version: "1.1"

paper:
  paper_id: phelan2014evidencestakesmatter
  citation: "Phelan, M. (2014). Evidence that stakes don't matter for evidence. Philosophical Psychology."
  short_label: "Phelan 2014 (evidence)"
  doi: "10.1080/09515089.2012.733363"
  published: "Yes"
  year: 2014
  language: "English"
  language_other: null
  research_objective: "Assess whether ordinary judgments support anti-intellectualism about evidence (AIE): whether evidence/evidence-quality depends on practical stakes."
  data_availability:
    data_available_online: null
    url: null
    notes: null
  notes: null

studies:
  - study_id: 1
    label: "Experiment 1 (Passerby; UNC students)"
    objective: "Test whether practical stakes affect judgments about how confident an agent should be, comparing Unimportant vs Important cases presented either singly or juxtaposed (Two Cases)."
    sample:
      n_final: 107
      recruitment: students
      recruitment_other: null
      compensation: null
      compensation_other: null
      characteristics: "UNC-Chapel Hill undergraduates in introductory philosophy classes; mean previous philosophy classes taken = 1 (mode 0)."
      provenance:
        page: null
        quote: "I asked 107 University of North Carolina, Chapel Hill undergraduate students in introductory philosophy classes... The mean number of previous philosophy classes taken by participants in this study was 1 (the mode was 0)."
        tei_id: null
        table_ref: null
    design: null
    design_other: "Mixed: between-subjects single-vignette conditions (Unimportant vs Important) and within-subjects Two Cases condition."
    manipulated_factors:
      - "Case presentation: single vignette vs juxtaposed (Two Cases)"
    paradigm: "Rating confidence in the belief"
    paradigm_other: null
    scale:
      label: "Likert 7-point"
      points: 7
      anchors: "1 = not confident; 7 = very confident"
      direction: "Higher = more confident"
      provenance:
        page: null
        quote: "This question was judged on a seven-point scale, with 1 representing 'not confident' and 7 representing 'very confident'."
        tei_id: null
        table_ref: null
    measures:
      knowledge_question_text: null
      knowledge_question_first: null
      additional_question_text: "How confident should Kate be that she is on Main Street?"
    scenarios:
      - scenario_code: other
        scenario_type: "Main Street navigation / street name (passerby testimony)"
        high_stakes_text: "Kate needs to get to Main Street by noon: her life depends upon it."
        low_stakes_text: "Kate is ambling down the street, out on a walk for no particular reason and with no particular place to go."
        provenance:
          page: null
          quote: "Important: \"Kate needs to get to Main Street by noon: her life depends upon it.\" Unimportant: \"Kate is ambling down the street, out on a walk for no particular reason and with no particular place to go.\""
          tei_id: null
          table_ref: null
    effects:
      - effect_id: s1_e1
        subgroup: "Non-juxtaposed (single vignette)"
        subgroup_desc: "Passerby; between-subjects"
        design: "Between-Subjects"
        design_other: null
        moderators:
          scenario: other
          skeptical_pressure: "No"
          awareness: "Yes"
          evidence: "External"
          attribution_person: null
          evidence_reliability: "Medium"
        moderators_coding:
          scenario:
            provenance:
              page: null
              quote: "Kate... asks a passerby the name of the street. \"Main Street,\" the passerby says."
              tei_id: null
              table_ref: null
            reason: "The vignette is about street navigation / street-name testimony (not bank/peanuts/bridge/typos)."
          skeptical_pressure:
            provenance:
              page: null
              quote: "She has no special reason to believe that the passerby is inaccurate."
              tei_id: null
              table_ref: null
            reason: "No explicit doubt/counterconsiderations are introduced in the vignette."
          awareness:
            provenance:
              page: null
              quote: "Kate needs to get to Main Street by noon: her life depends upon it."
              tei_id: null
              table_ref: null
            reason: "The protagonist is explicitly aware of the high-stakes consequences in the Important condition."
          evidence:
            provenance:
              page: null
              quote: "Kate... asks a passerby the name of the street. \"Main Street,\" the passerby says."
              tei_id: null
              table_ref: null
            reason: "The agent's evidence is testimony from another person (external source)."
          attribution_person:
            provenance:
              page: null
              quote: "\"how confident should Kate be that she is on Main Street?\""
              tei_id: null
              table_ref: null
            reason: "DV is a confidence rating, not a knowledge attribution; self/third-person knowledge-ascription coding is not applicable."
          evidence_reliability:
            provenance:
              page: null
              quote: "She has no special reason to believe that the passerby is inaccurate."
              tei_id: null
              table_ref: null
            reason: "A normal passerby is not flagged as unreliable; coded as moderately reliable per coding guide."
        contrast:
          group_high: Important
          group_low: Unimportant
          sign_convention: "d = mean(low) - mean(high)"
          other_notes: "Important = high stakes; Unimportant = low stakes."
        groups:
          - group_id: Unimportant
            label: "Low stakes (Unimportant)"
            n: null
            mean: 5.11
            sd: 1.23
            se: null
            provenance:
              page: null
              quote: "Mean: \"Unimportant (5.11)\". SD: \"SD for unimportant ¼ 1.23\"."
              tei_id: null
              table_ref: null
          - group_id: Important
            label: "High stakes (Important)"
            n: null
            mean: 4.93
            sd: 1.77
            se: null
            provenance:
              page: null
              quote: "Mean: \"Important (4.93)\". SD: \"SD for important ¼ 1.77\"."
              tei_id: null
              table_ref: null
        reported_test:
          test: "t"
          t: 0.435
          f: null
          chi2: null
          z: null
          df1: 55
          df2: null
          p: 0.665
          reported_d: 0.12
          reported_r: null
          notes: "Two-tailed."
          provenance:
            page: null
            quote: "SD for unimportant ¼ 1.23, SD for important ¼ 1.77, t (55) ¼ 0.435, p ¼ 0.665 (two tailed), d ¼ 0.12."
            tei_id: null
            table_ref: null
        effect_size:
          metric: SMD
          d: 0.120000000000
          v: 0.076230790185
          computed_from: reported_d
          needs_review: false
          notes: "d from paper; v computed from reported d + t(df) in analysis/effect_sizes.qmd (method=between_reported_d_t_df)."
        quality_flags: []
        notes: null

      - effect_id: s1_e2
        subgroup: "Juxtaposed (Two Cases)"
        subgroup_desc: "Passerby; within-subjects"
        design: "Within-Subjects"
        design_other: null
        moderators:
          scenario: other
          skeptical_pressure: "No"
          awareness: "Yes"
          evidence: "External"
          attribution_person: null
          evidence_reliability: "Medium"
        moderators_coding:
          scenario:
            provenance:
              page: null
              quote: "Kate... asks a passerby the name of the street. \"Main Street,\" the passerby says."
              tei_id: null
              table_ref: null
            reason: "The vignette is about street navigation / street-name testimony (not bank/peanuts/bridge/typos)."
          skeptical_pressure:
            provenance:
              page: null
              quote: "She has no special reason to believe that the passerby is inaccurate."
              tei_id: null
              table_ref: null
            reason: "No explicit doubt/counterconsiderations are introduced in the vignette."
          awareness:
            provenance:
              page: null
              quote: "Kate needs to get to Main Street by noon: her life depends upon it."
              tei_id: null
              table_ref: null
            reason: "The protagonist is explicitly aware of the high-stakes consequences in the Important vignette."
          evidence:
            provenance:
              page: null
              quote: "Kate... asks a passerby the name of the street. \"Main Street,\" the passerby says."
              tei_id: null
              table_ref: null
            reason: "The agent's evidence is testimony from another person (external source)."
          attribution_person:
            provenance:
              page: null
              quote: "\"how confident should Kate be that she is on Main Street?\""
              tei_id: null
              table_ref: null
            reason: "DV is a confidence rating, not a knowledge attribution; self/third-person knowledge-ascription coding is not applicable."
          evidence_reliability:
            provenance:
              page: null
              quote: "She has no special reason to believe that the passerby is inaccurate."
              tei_id: null
              table_ref: null
            reason: "A normal passerby is not flagged as unreliable; coded as moderately reliable per coding guide."
        contrast:
          group_high: Important
          group_low: Unimportant
          sign_convention: "d = mean(low) - mean(high)"
          other_notes: "Two Cases condition: same participants rated both Unimportant and Important vignettes."
        groups:
          - group_id: Unimportant
            label: "Low stakes (Unimportant)"
            n: 50
            mean: 5.32
            sd: 1.27
            se: null
            provenance:
              page: null
              quote: "Mean: \"unimportant case (5.32)\". SD: \"SD for unimportant ¼ 1.27\"."
              tei_id: null
              table_ref: null
          - group_id: Important
            label: "High stakes (Important)"
            n: 50
            mean: 4.5
            sd: 1.39
            se: null
            provenance:
              page: null
              quote: "Mean: \"important case (4.5)\". SD: \"SD for important ¼ 1.39\"."
              tei_id: null
              table_ref: null
        reported_test:
          test: "t"
          t: 4.499
          f: null
          chi2: null
          z: null
          df1: 49
          df2: null
          p: 0.001
          reported_d: 0.62
          reported_r: null
          notes: "Two-tailed; reported as p ≤ .001."
          provenance:
            page: null
            quote: "SD for unimportant ¼ 1.27, SD for important ¼ 1.39, t (49) ¼ 4.499, p 5 .001 (two tailed), d ¼ 0.62."
            tei_id: null
            table_ref: null
        effect_size:
          metric: SMD
          d: 0.615914928275
          v: 0.021091883797
          computed_from: groups
          needs_review: false
          notes: "Computed in analysis/effect_sizes.qmd using within_smcrp_t (paired t used to recover within-person r); n_total inferred as df+1."
        quality_flags: []
        notes: null

  - study_id: 2
    label: "Experiment 2 (Single drunk; mTurk)"
    objective: "Replicate Experiment 1 with an unreliable source (drunk testimony) and the same stakes manipulation, including a Two Cases condition."
    sample:
      n_final: 113
      recruitment: mTurk
      recruitment_other: null
      compensation: null
      compensation_other: null
      characteristics: "mTurk participants; 19 excluded for failing a comprehension check (age/gender/language reported in text)."
      provenance:
        page: null
        quote: "In a second experiment, 132 participants on Amazon's Mechanical Turk were asked... 19 participants were rejected from the following analyses for failing a comprehension check."
        tei_id: null
        table_ref: null
    design: null
    design_other: "Mixed: between-subjects single-vignette conditions (Unimportant vs Important) and within-subjects Two Cases condition."
    manipulated_factors:
      - "Case presentation: single vignette vs juxtaposed (Two Cases)"
    paradigm: "Rating confidence in the belief"
    paradigm_other: null
    scale:
      label: "Likert 7-point"
      points: 7
      anchors: "1 = not confident; 7 = very confident"
      direction: "Higher = more confident"
      provenance:
        page: null
        quote: "For each vignette they received, each participant was asked... \"how confident should Kate be that she is on Main Street?\" Again, this question was judged on a seven-point scale."
        tei_id: null
        table_ref: null
    measures:
      knowledge_question_text: null
      knowledge_question_first: null
      additional_question_text: "How confident should Kate be that she is on Main Street?"
    scenarios:
      - scenario_code: other
        scenario_type: "Main Street navigation / street name (drunk testimony)"
        high_stakes_text: "Kate needs to get to Main Street by noon: her life depends upon it."
        low_stakes_text: "Kate is ambling down the street, out on a walk for no particular reason and with no particular place to go."
        provenance:
          page: null
          quote: "Important: \"Kate needs to get to Main Street by noon: her life depends upon it.\" Unimportant: \"Kate is ambling down the street, out on a walk for no particular reason and with no particular place to go.\""
          tei_id: null
          table_ref: null
    effects:
      - effect_id: s2_e1
        subgroup: "Non-juxtaposed (single vignette)"
        subgroup_desc: "Single drunk; between-subjects"
        design: "Between-Subjects"
        design_other: null
        moderators:
          scenario: other
          skeptical_pressure: "No"
          awareness: "Yes"
          evidence: "External"
          attribution_person: null
          evidence_reliability: "Low"
        moderators_coding:
          scenario:
            provenance:
              page: null
              quote: "A drunk is standing on the corner, looking a bit unsteady on his feet... Kate asks the drunk the name of the street."
              tei_id: null
              table_ref: null
            reason: "The vignette is about street navigation / street-name testimony (not bank/peanuts/bridge/typos)."
          skeptical_pressure:
            provenance:
              page: null
              quote: "She has no special reason to believe that the drunk is inaccurate."
              tei_id: null
              table_ref: null
            reason: "No explicit doubt/counterconsiderations are introduced in the vignette."
          awareness:
            provenance:
              page: null
              quote: "Kate needs to get to Main Street by noon: her life depends upon it."
              tei_id: null
              table_ref: null
            reason: "The protagonist is explicitly aware of the high-stakes consequences in the Important vignette."
          evidence:
            provenance:
              page: null
              quote: "Kate asks the drunk the name of the street. \"Main Street,\" the drunk says."
              tei_id: null
              table_ref: null
            reason: "The agent's evidence is testimony from another person (external source)."
          attribution_person:
            provenance:
              page: null
              quote: "\"how confident should Kate be that she is on Main Street?\""
              tei_id: null
              table_ref: null
            reason: "DV is a confidence rating, not a knowledge attribution; self/third-person knowledge-ascription coding is not applicable."
          evidence_reliability:
            provenance:
              page: null
              quote: "A drunk is standing on the corner, looking a bit unsteady on his feet."
              tei_id: null
              table_ref: null
            reason: "The source is explicitly a drunk (framed as unreliable); coded Low per coding guide."
        contrast:
          group_high: Important
          group_low: Unimportant
          sign_convention: "d = mean(low) - mean(high)"
          other_notes: "Important = high stakes; Unimportant = low stakes."
        groups:
          - group_id: Unimportant
            label: "Low stakes (Unimportant)"
            n: null
            mean: 4.29
            sd: 1.35
            se: null
            provenance:
              page: null
              quote: "Mean: \"Unimportant (4.29)\". SD: \"SD for unimportant ¼ 1.35\"."
              tei_id: null
              table_ref: null
          - group_id: Important
            label: "High stakes (Important)"
            n: null
            mean: 4.08
            sd: 1.46
            se: null
            provenance:
              page: null
              quote: "Mean: \"Important (4.08)\". SD: \"SD for important ¼ 1.46\"."
              tei_id: null
              table_ref: null
        reported_test:
          test: "t"
          t: 0.63
          f: null
          chi2: null
          z: null
          df1: 72
          df2: null
          p: 0.531
          reported_d: 0.15
          reported_r: null
          notes: "Two-tailed."
          provenance:
            page: null
            quote: "SD for unimportant ¼ 1.35, SD for important ¼ 1.46, t (72) ¼ 0.63, p ¼ 0.531 (two-tailed), d ¼ 0.15."
            tei_id: null
            table_ref: null
        effect_size:
          metric: SMD
          d: 0.150000000000
          v: 0.056845592404
          computed_from: reported_d
          needs_review: false
          notes: "d from paper; v computed from reported d + t(df) in analysis/effect_sizes.qmd (method=between_reported_d_t_df)."
        quality_flags: []
        notes: null

      - effect_id: s2_e2
        subgroup: "Juxtaposed (Two Cases)"
        subgroup_desc: "Single drunk; within-subjects"
        design: "Within-Subjects"
        design_other: null
        moderators:
          scenario: other
          skeptical_pressure: "No"
          awareness: "Yes"
          evidence: "External"
          attribution_person: null
          evidence_reliability: "Low"
        moderators_coding:
          scenario:
            provenance:
              page: null
              quote: "A drunk is standing on the corner, looking a bit unsteady on his feet... Kate asks the drunk the name of the street."
              tei_id: null
              table_ref: null
            reason: "The vignette is about street navigation / street-name testimony (not bank/peanuts/bridge/typos)."
          skeptical_pressure:
            provenance:
              page: null
              quote: "She has no special reason to believe that the drunk is inaccurate."
              tei_id: null
              table_ref: null
            reason: "No explicit doubt/counterconsiderations are introduced in the vignette."
          awareness:
            provenance:
              page: null
              quote: "Kate needs to get to Main Street by noon: her life depends upon it."
              tei_id: null
              table_ref: null
            reason: "The protagonist is explicitly aware of the high-stakes consequences in the Important vignette."
          evidence:
            provenance:
              page: null
              quote: "Kate asks the drunk the name of the street. \"Main Street,\" the drunk says."
              tei_id: null
              table_ref: null
            reason: "The agent's evidence is testimony from another person (external source)."
          attribution_person:
            provenance:
              page: null
              quote: "\"how confident should Kate be that she is on Main Street?\""
              tei_id: null
              table_ref: null
            reason: "DV is a confidence rating, not a knowledge attribution; self/third-person knowledge-ascription coding is not applicable."
          evidence_reliability:
            provenance:
              page: null
              quote: "A drunk is standing on the corner, looking a bit unsteady on his feet."
              tei_id: null
              table_ref: null
            reason: "The source is explicitly a drunk (framed as unreliable); coded Low per coding guide."
        contrast:
          group_high: Important
          group_low: Unimportant
          sign_convention: "d = mean(low) - mean(high)"
          other_notes: "Two Cases condition: same participants rated both Unimportant and Important vignettes."
        groups:
          - group_id: Unimportant
            label: "Low stakes (Unimportant)"
            n: 36
            mean: 4.14
            sd: 1.55
            se: null
            provenance:
              page: null
              quote: "Mean: \"unimportant (4.14)\". SD: \"SD for unimportant ¼ 1.55\"."
              tei_id: null
              table_ref: null
          - group_id: Important
            label: "High stakes (Important)"
            n: 36
            mean: 3.64
            sd: 1.79
            se: null
            provenance:
              page: null
              quote: "Mean: \"important (3.64)\". SD: \"SD for important ¼ 1.79\"."
              tei_id: null
              table_ref: null
        reported_test:
          test: "t"
          t: 2.24
          f: null
          chi2: null
          z: null
          df1: 35
          df2: null
          p: 0.032
          reported_d: 0.30
          reported_r: null
          notes: "Two-tailed; Three additional participants (passed comprehension) excluded from this analysis for missing a rating."
          provenance:
            page: null
            quote: "SD for unimportant ¼ 1.55, SD for important ¼ 1.79, t (35) ¼ 2.24, p ¼ 0.032 (two-tailed), d ¼ 0.30. (Three additional participants who passed the comprehension check were rejected from this analysis because they did not rate at least one of the vignettes.)"
            tei_id: null
            table_ref: null
        effect_size:
          metric: SMD
          d: 0.298631225039
          v: 0.018293092206
          computed_from: groups
          needs_review: false
          notes: "Computed in analysis/effect_sizes.qmd using within_smcrp_t (paired t used to recover within-person r); n_total inferred as df+1."
        quality_flags: []
        notes: null

  - study_id: 3
    label: "Experiment 3 (Street signs; UNC students)"
    objective: "Test whether stakes affect confidence judgments when the evidence source is highly reliable (street sign), including a Two Cases condition."
    sample:
      n_final: 141
      recruitment: students
      recruitment_other: null
      compensation: null
      compensation_other: null
      characteristics: "UNC-Chapel Hill undergraduates; mean previous philosophy classes taken = 1 (mode 0)."
      provenance:
        page: null
        quote: "I made street signs the source of information for the 141 University of North Carolina, Chapel Hill undergraduate participants. The mean number of previous philosophy classes taken by participants in this study was 1 (the mode was 0)."
        tei_id: null
        table_ref: null
    design: null
    design_other: "Mixed: between-subjects single-vignette conditions (Unimportant vs Important) and within-subjects Two Cases condition."
    manipulated_factors:
      - "Case presentation: single vignette vs juxtaposed (Two Cases)"
    paradigm: "Rating confidence in the belief"
    paradigm_other: null
    scale:
      label: "Likert 7-point"
      points: 7
      anchors: "1 = not confident; 7 = very confident"
      direction: "Higher = more confident"
      provenance:
        page: null
        quote: "For each vignette received, each participant was asked, \"how confident should Kate be that she is on Main Street?\" ... judged on a seven-point scale."
        tei_id: null
        table_ref: null
    measures:
      knowledge_question_text: null
      knowledge_question_first: null
      additional_question_text: "How confident should Kate be that she is on Main Street?"
    scenarios:
      - scenario_code: other
        scenario_type: "Main Street navigation / street name (street sign observation)"
        high_stakes_text: "Kate needs to get to Main Street by noon: her life depends upon it."
        low_stakes_text: "Kate is ambling down the street, out on a walk for no particular reason and with no particular place to go."
        provenance:
          page: null
          quote: "Important: \"Kate needs to get to Main Street by noon: her life depends upon it.\" Unimportant: \"Kate is ambling down the street, out on a walk for no particular reason and with no particular place to go.\""
          tei_id: null
          table_ref: null
    effects:
      - effect_id: s3_e1
        subgroup: "Non-juxtaposed (single vignette)"
        subgroup_desc: "Street sign; between-subjects"
        design: "Between-Subjects"
        design_other: null
        moderators:
          scenario: other
          skeptical_pressure: "No"
          awareness: "Yes"
          evidence: "External"
          attribution_person: null
          evidence_reliability: "High"
        moderators_coding:
          scenario:
            provenance:
              page: null
              quote: "Kate... looks up at a street sign that says \"Main Street.\""
              tei_id: null
              table_ref: null
            reason: "The vignette is about street navigation / street-name evidence (not bank/peanuts/bridge/typos)."
          skeptical_pressure:
            provenance:
              page: null
              quote: "She has no special reason to believe that the street sign is inaccurate."
              tei_id: null
              table_ref: null
            reason: "No explicit doubt/counterconsiderations are introduced in the vignette."
          awareness:
            provenance:
              page: null
              quote: "Kate needs to get to Main Street by noon: her life depends upon it."
              tei_id: null
              table_ref: null
            reason: "The protagonist is explicitly aware of the high-stakes consequences in the Important vignette."
          evidence:
            provenance:
              page: null
              quote: "Kate... looks up at a street sign that says \"Main Street.\""
              tei_id: null
              table_ref: null
            reason: "The agent's evidence is from an external source (a street sign)."
          attribution_person:
            provenance:
              page: null
              quote: "\"how confident should Kate be that she is on Main Street?\""
              tei_id: null
              table_ref: null
            reason: "DV is a confidence rating, not a knowledge attribution; self/third-person knowledge-ascription coding is not applicable."
          evidence_reliability:
            provenance:
              page: null
              quote: "She has no special reason to believe that the street sign is inaccurate."
              tei_id: null
              table_ref: null
            reason: "Street sign with normal lighting/vision is framed as highly reliable; coded High per coding guide."
        contrast:
          group_high: Important
          group_low: Unimportant
          sign_convention: "d = mean(low) - mean(high)"
          other_notes: "Sign convention yields a negative d here because mean(Important) > mean(Unimportant)."
        groups:
          - group_id: Unimportant
            label: "Low stakes (Unimportant)"
            n: null
            mean: 5.61
            sd: 1.34
            se: null
            provenance:
              page: null
              quote: "Mean: \"Unimportant (5.61)\". SD: \"SD for unimportant ¼ 1.34\"."
              tei_id: null
              table_ref: null
          - group_id: Important
            label: "High stakes (Important)"
            n: null
            mean: 5.79
            sd: 0.96
            se: null
            provenance:
              page: null
              quote: "Mean: \"Important (5.79)\". SD: \"SD for important ¼ 0.96\"."
              tei_id: null
              table_ref: null
        reported_test:
          test: "t"
          t: 0.675
          f: null
          chi2: null
          z: null
          df1: 73
          df2: null
          p: 0.502
          reported_d: 0.15
          reported_r: null
          notes: "Two-tailed; reported d appears unsigned in notes, so sign is applied via contrast.sign_convention."
          provenance:
            page: null
            quote: "SD for unimportant ¼ 1.34, SD for important ¼ 0.96, t (73) ¼ 0.675, p ¼ 0.502 (two-tailed), d ¼ 0.15."
            tei_id: null
            table_ref: null
        effect_size:
          metric: SMD
          d: -0.150000000000
          v: 0.049536825638
          computed_from: reported_d
          needs_review: false
          notes: "d magnitude from paper; sign follows d = mean(low) - mean(high); v computed from reported d + t(df) in analysis/effect_sizes.qmd."
        quality_flags: []
        notes: null

      - effect_id: s3_e2
        subgroup: "Juxtaposed (Two Cases)"
        subgroup_desc: "Street sign; within-subjects"
        design: "Within-Subjects"
        design_other: null
        moderators:
          scenario: other
          skeptical_pressure: "No"
          awareness: "Yes"
          evidence: "External"
          attribution_person: null
          evidence_reliability: "High"
        moderators_coding:
          scenario:
            provenance:
              page: null
              quote: "Kate... looks up at a street sign that says \"Main Street.\""
              tei_id: null
              table_ref: null
            reason: "The vignette is about street navigation / street-name evidence (not bank/peanuts/bridge/typos)."
          skeptical_pressure:
            provenance:
              page: null
              quote: "She has no special reason to believe that the street sign is inaccurate."
              tei_id: null
              table_ref: null
            reason: "No explicit doubt/counterconsiderations are introduced in the vignette."
          awareness:
            provenance:
              page: null
              quote: "Kate needs to get to Main Street by noon: her life depends upon it."
              tei_id: null
              table_ref: null
            reason: "The protagonist is explicitly aware of the high-stakes consequences in the Important vignette."
          evidence:
            provenance:
              page: null
              quote: "Kate... looks up at a street sign that says \"Main Street.\""
              tei_id: null
              table_ref: null
            reason: "The agent's evidence is from an external source (a street sign)."
          attribution_person:
            provenance:
              page: null
              quote: "\"how confident should Kate be that she is on Main Street?\""
              tei_id: null
              table_ref: null
            reason: "DV is a confidence rating, not a knowledge attribution; self/third-person knowledge-ascription coding is not applicable."
          evidence_reliability:
            provenance:
              page: null
              quote: "She has no special reason to believe that the street sign is inaccurate."
              tei_id: null
              table_ref: null
            reason: "Street sign with normal lighting/vision is framed as highly reliable; coded High per coding guide."
        contrast:
          group_high: Important
          group_low: Unimportant
          sign_convention: "d = mean(low) - mean(high)"
          other_notes: "Two Cases condition: same participants rated both Unimportant and Important vignettes."
        groups:
          - group_id: Unimportant
            label: "Low stakes (Unimportant)"
            n: 66
            mean: 5.76
            sd: 1.55
            se: null
            provenance:
              page: null
              quote: "Mean: \"unimportant case (5.76)\". SD: \"SD for unimportant ¼ 1.55\"."
              tei_id: null
              table_ref: null
          - group_id: Important
            label: "High stakes (Important)"
            n: 66
            mean: 5.26
            sd: 1.44
            se: null
            provenance:
              page: null
              quote: "Mean: \"important case (5.26)\". SD: \"SD for important ¼ 1.44\"."
              tei_id: null
              table_ref: null
        reported_test:
          test: "t"
          t: 2.92
          f: null
          chi2: null
          z: null
          df1: 65
          df2: null
          p: 0.005
          reported_d: 0.34
          reported_r: null
          notes: "Two-tailed."
          provenance:
            page: null
            quote: "SD for unimportant ¼ 1.55, SD for important ¼ 1.44, t (65) ¼ 2.92, p ¼ 0.005 (two-tailed), d ¼ 0.34."
            tei_id: null
            table_ref: null
        effect_size:
          metric: SMD
          d: 0.334222060185
          v: 0.013614587204
          computed_from: groups
          needs_review: false
          notes: "Computed in analysis/effect_sizes.qmd using within_smcrp_t (paired t used to recover within-person r); n_total inferred as df+1."
        quality_flags: []
        notes: null

  - study_id: 4
    label: "Superseded prior study (Two drunks; UNC students)"
    objective: "Superseded earlier version of Experiment 2 using two drunks as the information source (reported only in notes)."
    sample:
      n_final: null
      recruitment: students
      recruitment_other: null
      compensation: null
      compensation_other: null
      characteristics: "Conducted at UNC-Chapel Hill; sample size not explicitly reported in notes (only test dfs reported)."
      provenance:
        page: null
        quote: "This study supersedes a previous study, conducted at University of North Carolina, Chapel Hill, involving two drunks."
        tei_id: null
        table_ref: null
    design: null
    design_other: "Mixed: between-subjects single-vignette conditions (Unimportant vs Important) and within-subjects Two Cases condition (inferred from reported dfs)."
    manipulated_factors:
      - "Case presentation: single vignette vs juxtaposed (Two Cases)"
    paradigm: "Rating confidence in the belief"
    paradigm_other: null
    scale:
      label: "Likert 7-point"
      points: 7
      anchors: "1 = not confident; 7 = very confident"
      direction: "Higher = more confident"
      provenance:
        page: null
        quote: "As in the first experiment... \"how confident should Kate be that she is on Main Street?\" ... judged on a seven-point scale."
        tei_id: null
        table_ref: null
    measures:
      knowledge_question_text: null
      knowledge_question_first: null
      additional_question_text: "How confident should Kate be that she is on Main Street?"
    scenarios:
      - scenario_code: other
        scenario_type: "Main Street navigation / street name (two drunks testimony; superseded)"
        high_stakes_text: "Kate needs to get to Main Street by noon: her life depends upon it."
        low_stakes_text: "Kate is ambling down the street, out on a walk for no particular reason and with no particular place to go."
        provenance:
          page: null
          quote: "Important: \"Kate needs to get to Main Street by noon: her life depends upon it.\" Unimportant: \"Kate is ambling down the street, out on a walk for no particular reason and with no particular place to go.\""
          tei_id: null
          table_ref: null
    effects:
      - effect_id: s4_e1
        subgroup: "Non-juxtaposed (single vignette)"
        subgroup_desc: "Two drunks; between-subjects"
        design: "Between-Subjects"
        design_other: null
        moderators:
          scenario: other
          skeptical_pressure: "No"
          awareness: "Yes"
          evidence: "External"
          attribution_person: null
          evidence_reliability: "Low"
        moderators_coding:
          scenario:
            provenance:
              page: null
              quote: "two drunks are standing on the corner... Kate asks the drunks the name of the street."
              tei_id: null
              table_ref: null
            reason: "The vignette is about street navigation / street-name testimony (not bank/peanuts/bridge/typos)."
          skeptical_pressure:
            provenance:
              page: null
              quote: "two drunks are standing on the corner in an intense discussion."
              tei_id: null
              table_ref: null
            reason: "No explicit skeptical prompt is introduced; the manipulation concerns source reliability and stakes."
          awareness:
            provenance:
              page: null
              quote: "Kate needs to get to Main Street by noon: her life depends upon it."
              tei_id: null
              table_ref: null
            reason: "The protagonist is explicitly aware of the high-stakes consequences in the Important vignette."
          evidence:
            provenance:
              page: null
              quote: "Kate asks the drunks the name of the street. 'Main Street', the drunks say."
              tei_id: null
              table_ref: null
            reason: "The agent's evidence is testimony from other people (external source)."
          attribution_person:
            provenance:
              page: null
              quote: "\"how confident should Kate be\""
              tei_id: null
              table_ref: null
            reason: "DV is a confidence rating, not a knowledge attribution; self/third-person knowledge-ascription coding is not applicable."
          evidence_reliability:
            provenance:
              page: null
              quote: "two drunks are standing on the corner in an intense discussion."
              tei_id: null
              table_ref: null
            reason: "Source is explicitly 'two drunks' (unreliable); coded Low per coding guide."
        contrast:
          group_high: Important
          group_low: Unimportant
          sign_convention: "d = mean(low) - mean(high)"
          other_notes: "Superseded two-drunks study; statistics reported in notes."
        groups:
          - group_id: Unimportant
            label: "Low stakes (Unimportant)"
            n: null
            mean: 4.72
            sd: 1.23
            se: null
            provenance:
              page: null
              quote: "Unimportant (M ¼ 4.72, SD ¼ 1.23)."
              tei_id: null
              table_ref: null
          - group_id: Important
            label: "High stakes (Important)"
            n: null
            mean: 4.39
            sd: 1.91
            se: null
            provenance:
              page: null
              quote: "Important (M ¼ 4.39, SD ¼ 1.91)."
              tei_id: null
              table_ref: null
        reported_test:
          test: "t"
          t: 0.622
          f: null
          chi2: null
          z: null
          df1: 34
          df2: null
          p: 0.538
          reported_d: 0.20
          reported_r: null
          notes: "Two-tailed."
          provenance:
            page: null
            quote: "For the original nonjuxtaposed drunks cases, scores for Unimportant (M ¼ 4.72, SD ¼ 1.23) did not differ significantly from Important (M ¼ 4.39, SD ¼ 1.91). t (34) ¼ 0.622, p ¼ 0.538 (two tailed), d ¼ 0.20."
            tei_id: null
            table_ref: null
        effect_size:
          metric: SMD
          d: 0.200000000000
          v: 0.103978398754
          computed_from: reported_d
          needs_review: false
          notes: "d from paper notes; v computed from reported d + t(df) in analysis/effect_sizes.qmd (method=between_reported_d_t_df)."
        quality_flags: []
        notes: null

      - effect_id: s4_e2
        subgroup: "Juxtaposed (Two Cases)"
        subgroup_desc: "Two drunks; within-subjects"
        design: "Within-Subjects"
        design_other: null
        moderators:
          scenario: other
          skeptical_pressure: "No"
          awareness: "Yes"
          evidence: "External"
          attribution_person: null
          evidence_reliability: "Low"
        moderators_coding:
          scenario:
            provenance:
              page: null
              quote: "two drunks are standing on the corner... Kate asks the drunks the name of the street."
              tei_id: null
              table_ref: null
            reason: "The vignette is about street navigation / street-name testimony (not bank/peanuts/bridge/typos)."
          skeptical_pressure:
            provenance:
              page: null
              quote: "two drunks are standing on the corner in an intense discussion."
              tei_id: null
              table_ref: null
            reason: "No explicit skeptical prompt is introduced; the manipulation concerns source reliability and stakes."
          awareness:
            provenance:
              page: null
              quote: "Kate needs to get to Main Street by noon: her life depends upon it."
              tei_id: null
              table_ref: null
            reason: "The protagonist is explicitly aware of the high-stakes consequences in the Important vignette."
          evidence:
            provenance:
              page: null
              quote: "Kate asks the drunks the name of the street. 'Main Street', the drunks say."
              tei_id: null
              table_ref: null
            reason: "The agent's evidence is testimony from other people (external source)."
          attribution_person:
            provenance:
              page: null
              quote: "\"how confident should Kate be\""
              tei_id: null
              table_ref: null
            reason: "DV is a confidence rating, not a knowledge attribution; self/third-person knowledge-ascription coding is not applicable."
          evidence_reliability:
            provenance:
              page: null
              quote: "two drunks are standing on the corner in an intense discussion."
              tei_id: null
              table_ref: null
            reason: "Source is explicitly 'two drunks' (unreliable); coded Low per coding guide."
        contrast:
          group_high: Important
          group_low: Unimportant
          sign_convention: "d = mean(low) - mean(high)"
          other_notes: "Superseded two-drunks study; Two Cases condition."
        groups:
          - group_id: Unimportant
            label: "Low stakes (Unimportant)"
            n: 36
            mean: 4.53
            sd: 1.32
            se: null
            provenance:
              page: null
              quote: "Unimportant (M ¼ 4.53, SD ¼ 1.32)."
              tei_id: null
              table_ref: null
          - group_id: Important
            label: "High stakes (Important)"
            n: 36
            mean: 3.69
            sd: 1.47
            se: null
            provenance:
              page: null
              quote: "Important (M ¼ 3.69, SD ¼ 1.47)."
              tei_id: null
              table_ref: null
        reported_test:
          test: "t"
          t: 4.14
          f: null
          chi2: null
          z: null
          df1: 35
          df2: null
          p: 0.001
          reported_d: 0.60
          reported_r: null
          notes: "Two-tailed; reported as p ≤ 0.001."
          provenance:
            page: null
            quote: "For the original juxtaposed drunks cases, scores for Unimportant (M ¼ 4.53, SD ¼ 1.32) did not differ significantly from Important (M ¼ 3.69, SD ¼ 1.47). t (35) ¼ 4.14, p 5 0.001 (two-tailed), d ¼ 0.60."
            tei_id: null
            table_ref: null
        effect_size:
          metric: SMD
          d: 0.601282159377
          v: 0.024382063341
          computed_from: groups
          needs_review: false
          notes: "Computed in analysis/effect_sizes.qmd using within_smcrp_t (paired t used to recover within-person r); n_total inferred as df+1."
        quality_flags: []
        notes: null