Some control schools implemented similar approaches such as teacher observation, so the trial may underestimate Lesson Study's impact relative to schools with no similar activity¶
Claim · All claims
Evidence · 1 study · causalr3·q2
Currency · newest study 2017 · not yet checked against its sources · 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.
q2 i? Evidence from post-trial surveys indicates some control schools used Lesson Study-like approaches such as teacher observation, which may have diluted the estimated effect. → Murphy et al. 2017
Evidence¶
Murphy et al. 2017¶
Richard Murphy, Felix Weinhardt, Gill Wyness and Heather Rolfe. (2017). Lesson Study: Evaluation report and executive summary. Education Endowment Foundation. https://eric.ed.gov/?id=ED581145
q2 · i? · causal · r3
Post-trial survey evidence from 11 completed control-school surveys on fidelity; no record of control activity was otherwise kept. The report concludes the trial "might, therefore, underestimate the impact of Lesson Study" in schools with no similar activity.
"There is evidence that some control schools implemented similar approaches to Lesson Study, such as teacher observation."
Discussion¶
Related Claims¶
- Few, if any, schools implemented Quest as designed, with low implementation possibly diluting any impact — related
- Most teachers felt longer than two terms was needed to embed Dialogic Teaching, so observed effect sizes may underestimate potential impact — related
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