Claims

Class climate—peer uptake and instructor credit incentives—relates to larger Exam Playbook effect sizes

Claim · All claims
Evidence · 1 study (2 entries) · associational r1–r2 · q3 · i0–i1
Currency · newest study 2022 · not yet checked against its sources · not reviewed by a person

Subclaims

Reading the evidence codes

q is the design tier, i the impact, n the sample, and the kind with its r the rigour judged within that kind: what each code means.

This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.

q3 i1 Average class usage of the Exam Playbook (the peer norm) was positively associated with the class's effect size (b = 2.49, d = 0.20). → Chen 2022 q3 i0 Classes offering course credit for use showed larger effect sizes (b = 2.04, d = 0.17) than classes that did not. → Chen 2022 (2)

Evidence

Chen 2022

Chen, P., Teo, D. W. H., Foo, D. X. Y., Derry, H. A., Hayward, B. T., Schulz, K. W., Hayward, C., McKay, T. A., & Ong, D. C. (2022). Real-world effectiveness of a social-psychological intervention translated from controlled trials to classrooms. npj Science of Learning 7:20. https://doi.org/10.1038/s41539-022-00135-w

q3 · i1 · associational · r2

Class-level linear model predicting each class's effect size found "the average Exam Playbook usage in a class (the peer norm) was positively associated with the effect size" (b = 2.49, d = 0.20).

"the average Exam Playbook usage in a class (the peer norm) was positively associated with the effect size of using the Exam Playbook ( b = 2.49 [1.82, 3.16], d = 0.20, p < 0.001)."

Chen 2022 (2)

Chen, P., Teo, D. W. H., Foo, D. X. Y., Derry, H. A., Hayward, B. T., Schulz, K. W., Hayward, C., McKay, T. A., & Ong, D. C. (2022). Real-world effectiveness of a social-psychological intervention translated from controlled trials to classrooms. npj Science of Learning 7:20. https://doi.org/10.1038/s41539-022-00135-w

q3 · i0 · associational · r1

In a separate linear model, credit incentives "related to a larger effect size than when it was not offered" (b = 2.04, d = 0.17, p = 0.046); bonuses did not influence the exam-performance outcome measure.

"teacher support in the form of course credit incentives offered related to a larger effect size than when it was not offered (b = 2.04 [0.25, 3.84], d = 0.17, p = 0.046)."

Discussion

Page metadata
Field Value
type claim
id exam-playbook-class-climate-moderators
title Class climate—peer uptake and instructor credit incentives—relates to larger Exam Playbook effect sizes
description Class climate—peer uptake and instructor credit incentives—relates to larger Exam Playbook effect sizes
status review
evidence_strength moderate
newest_evidence 2022
generated by process:wiki-ingest on 2026-10-27
trust unverified — no one has confirmed this page's content
sources 2 — chen-2022, chen-2022-2

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