The Switch-on Reading effect is confirmed when analysed as a post-test-only design (+0.24)¶

Claim · All claims
Evidence · 1 study · causal r3 · q3 · i1 small
Currency · newest study 2014 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i1 Re-analysis using post-test scores only, rather than gain scores, yields the same effect size of +0.24. → Gorard et al. 2014

Evidence¶

Gorard et al. 2014¶

Stephen Gorard, Beng Huat See, Nadia Siddiqui. (2014). Switch-on Reading: Evaluation Report and Executive Summary. Education Endowment Foundation. https://educationendowmentfoundation.org.uk/evaluation

q3 · i1 · causal · r3

Sensitivity analysis of the same randomised trial using post-test scores only (80.93 treatment vs 78.73 control), which the report says "confirms the same substantive result"; the effect size remained +0.24.

"Table 10 shows the same results assessed as though for a post -test only design. This confirms the same substantive result of a small positive impact."

Discussion¶

Related Claims¶

• Using raw rather than age-standardised scores reverses the FSM picture, yielding +0.36 for FSM-eligible pupils — related
• Switch-on Reading produces a small positive impact on reading (+0.24) for Year 7 weak readers in a waiting-list RCT — possibly the same claim (merge candidate)