The role model letter lowered the DEW rate for women in introductory chemistry (OR = .23)¶

Claim · All claims
Evidence · 1 study · causal r2 · q3
Currency · newest study 2016 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Women in the intervention condition had lower odds of receiving a D, E, or W in general chemistry than controls (odds ratio .23, a 77% reduction). → Herrmann et al. 2016

Evidence¶

Herrmann et al. 2016¶

Sarah D. Herrmann, Robert Mark Adelman, Jessica E. Bodford, Oliver Graudejus, Morris A. Okun, and Virginia S. Y. Kwan (2016). The Effects of a Female Role Model on Academic Performance and Persistence of Women in STEM Courses. Basic and Applied Social Psychology, 38(5), 258-268. https://doi.org/10.1080/01973533.2016.1209757

q3 · i? · causal · r2

DEW outcome in the chemistry replication (n à 65 with consent), coded 0 for A/B/C and 1 for D/E/W. Seven DEWs in control versus two in intervention; "The odds ratio of .23" was printed, with no standardized effect size.

"The odds of receiving a DEW were .28 to 1 in the control group (seven participants had a DEW and 25 did not) and .06 to 1 in the intervention group (two participants had a DEW and 31 did not). The odds ratio of .23 indicates that the odds of receiving a DEW in the intervention condition were 77% less than in the control condition."

Discussion¶

Learner Variables¶

• Gender — moderator: an instructional effect differs by group

Related Claims¶

• The role model letter raised course grades for women in introductory chemistry with a medium-to-large effect (d = .66) — related
• The role model letter lowered the DEW (fail/withdraw) rate for women in introductory psychology (OR = .38) — related
• Reading a brief online female role model letter raised course grades for women in an introductory psychology course (d = .24) — related