Claims

Subgroup analyses by gender, ethnicity, free school meal status and baseline ability all showed point estimates near zero with wide confidence intervals.

Claim · All claims
Evidence · 1 study · causal r2 · q3
Currency · newest study 2014 · checked against its sources 2026-11-01 (automated, 1 of 1 entry) · 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 i? For eight subgroups (males, females, FSM, non-FSM, white, non-white, above and below median ability), treatment effect estimates ranged from 0.003 to 0.025, none statistically significant. → Sandra McNally 2014

Evidence

Sandra McNally 2014

Sandra McNally, Amy Challen, Gill Wyness, Anne West, Philip Noden. (2014). Hampshire Hundreds Evaluation Report and Executive Summary. Education Endowment Foundation. https://eric.ed.gov/?id=ED581163

q3 · i? · causal · r2

Separate intention-to-treat regressions for each subgroup (Table 7), each controlling for baseline score and missing-data dummies, with standard errors clustered by school (24). All eight subgroup effect sizes were between 0.003 and 0.025 with 95% confidence intervals spanning zero.

"In every case, the point estimate is zero with a wide confidence interval. Once again, w e are unable to say whether the treatment has a positive or negative effect, although we can rule out medium to large positive effects."

Discussion

Learner Variables

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