Mean effects of community college interventions on cumulative credits earned increase over the first six semesters after random assignment, reaching 1.14 credits by semester 3¶
Claim · All claims
Evidence · 1 study · quant-synthesisr2·q3
Currency · newest study 2023 · checked against its sources 2026-11-01 (automated, 1 of 1 entry) · not reviewed by a person
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Reading the evidence codes
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This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q3 i? Across 39 community college interventions, the mean effect on cumulative credits earned rises from 0.47 credits in semester 1 to 2.46 credits in semester 6, with 1.14 credits at semester 3. → Michael J. Weiss 2023
Evidence¶
Michael J. Weiss 2023¶
Michael J. Weiss, Marie-Andrée Somers, & Colin Hill. (2023). Empirical Benchmarks for Planning and Interpreting Causal Effects of Community College Interventions. Journal of Postsecondary Student Success 3 (1). https://doi.org/10.33009/fsop_jpss132759
q3 · i? · quant-synthesis · r2
FIRC reanalysis of MDRC's THE-RCT student-level RCT data (39 interventions, up to 65,604 students) estimating the cross-intervention distribution of true effects by outcome and semester. The article reports the mean cumulative-credit effect "increases to 0.89, 1.14, 1.43, 1.70, and 2.46 credits" across semesters 2–6.
"the mean effect on cumulative credits earned starts at 0.47 credits in semester 1, and increases to 0.89, 1.14, 1.43, 1.70, and 2.46 credits, in semesters 2- 6, respectively."
Discussion¶
Related Claims¶
- Cross-intervention variation in community college intervention effects is substantial: for first-semester credits earned, the true-effect standard deviation (0.55 credits) exceeds the mean effect (0.48 credits) — related
- Mean effects of community college interventions on marginal (per-semester) enrollment and credits earned decrease over time, with decreasing variability — related
- Mean effects of community college interventions on marginal (per-semester) enrollment and credits earned decrease over time — related
- The Detroit Promise Path effect of 1.8 credits earned after two semesters sits at the 83rd percentile of the distribution of community college intervention effects, indicating a quite large effect — related
- For credits earned in semester 1, the estimated distribution of true intervention effects has a mean of 0.48 credits, a cross-intervention standard deviation of 0.55 credits, and a 75th percentile of 0.60 credits — related
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