The Evidence on Teaching

Ask the Cognitive Scientist: The Usefulness of Brief Instruction in Reading Comprehension Strategies

Willingham, D. T. · 2006

grade Dreviewindependentmixed
Sample
Synthesis of the NRP + Rosenshine meta-analyses
Population
US school-age readers; argument that strategy instruction is weak before grade 3-4.
Design
Expert synthesis built on existing metas, not new data. Grade D as a standalone; the numbers it cites are C-level meta estimates.
Key findings
Argues comprehension strategies are a small, front-loaded, one-time boost (~d 0.33) that saturates in ~6-10 sessions - a low-cost 'trick' (remember to monitor/summarize), not a skill built by practice. Concludes broad vocabulary and background knowledge yield the more substantial, durable benefits.
Genetic confound
Notes 'good readers use strategies' is only correlational; frames knowledge/vocabulary (themselves heritable) as the deeper drivers.
Replication notes
Flat dose-response consistent across the strategy literature; the 'brief suffices' framing is contested by Shanahan.

Effects

OutcomeMetricValueMeasureTimingVsHorizonClass
Average effect of teaching a comprehension strategyd~0.33mixedend-of-treatmentbusiness-as-usualend-of-treatmentdomain-skill
Dose-response (~6 vs ~50 sessions)d~0 (saturates fast)mixedend-of-treatmentactive-alternativeend-of-treatmentdomain-skill

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