The role model letter raised course grades for women in introductory chemistry with a medium-to-large effect (d = .66)¶

Claim · All claims
Evidence · 1 study · causal r2 · q3 · i2 medium
Currency · newest study 2016 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i2 Female students in the intervention condition earned higher general chemistry course grades than controls, a medium-to-large effect (d = .66). → 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 · i2 · causal · r2

Replication in a challenging introductory chemistry course where women were numerically underrepresented; 68 female students completed the study, with grades collected for n à 65 consenting participants. The article calls "The d of .66" a medium-to-large effect size.

"participants in the intervention condition had higher course grades ( n à 29, M à 3.01, SD à .55) than those in the control condition ( n à 32, M à 2.40, SD à 1.16). The d of .66 indicates that participants in the intervention group on average earned approximately two thirds of a standard deviation higher grade"

Discussion¶

Learner Variables¶

• Gender — moderator: an instructional effect differs by group

Related Claims¶

• Reading a brief online female role model letter raised course grades for women in an introductory psychology course (d = .24) — related
• The role model letter lowered the DEW rate for women in introductory chemistry (OR = .23) — related
• The role model letter lowered the DEW (fail/withdraw) rate for women in introductory psychology (OR = .38) — related