Across 11 CORI studies, mean effect sizes ranged from 0.49 for self-efficacy to 1.20 for intrinsic motivation, generally exceeding average motivation-intervention effects¶

Claim · All claims
Evidence · 1 study · theoretical r3 · q3 · i3 large
Currency · newest study 2026 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i3 Guthrie et al.'s (2007) meta-analysis of 11 CORI studies found mean effect sizes from 0.49 (self-efficacy) to 1.20 (intrinsic motivation composite), with most larger than average motivation-intervention effects. → Linnenbrink-Garcia 2026

Evidence¶

Linnenbrink-Garcia 2026¶

Linnenbrink-Garcia, L., Wigfield, A., Cabrera, L., Mouzaoir, S., McKinney, D., Liu, P. P., Marchand, G., Schmidt, J. A., Harris, C. J., & Guthrie, J. (2026). The Case for Multifaceted, Integrative Motivation Interventions Embedded in Classrooms. Educational Psychology Review. https://doi.org/10.1007/s10648-026-10177-w

q3 · i3 · theoretical · r3

Meta-analysis by Guthrie et al. (2007) summarizing 11 CORI studies with elementary and middle school students, each containing CORI and comparison groups. Mean effect sizes spanned "a low of 0.49 for students' self-efficacy to 1.20 for the intrinsic motivation composite", including 1.00 for teacher-rated engagement and 0.91 for standardized reading comprehension.

"They range from a low of 0.49 for students' self-efficacy to 1.20 for the intrinsic motivation composite. As can be seen, nearly all of the effect sizes are larger than those Lazowski and Hulleman (2016) reported in their summary of motivation interventions."

Discussion¶

Learner Variables¶

• Motivation — outcome: instruction changes it

Related Claims¶

• CORI students outperformed SI and TI comparison students on standardized reading tests and were rated higher in reading motivation, in quasi-experimental studies with large effect sizes — related
• Field-based motivation interventions produce on average a medium overall effect size (0.49), with quasi-experimental designs yielding larger effects than randomized designs, and studies using multiple theoretical frameworks averaging 0.41 — related