The Evidence on Teaching

Is Phonological-Only Instruction Helpful for Reading? A Meta-Analysis

Stalega, M. W., Kearns, D. M., Bourget, et al. · 2024

grade Cmeta-analysisindependentreplicated
Sample
38 studies / 293 effect sizes, preK-1
Population
Preschool-grade 1 readers.
Design
Meta comparing phonological-only (speech-based) instruction against untreated comparisons and against print-based instruction.
Key findings
Phonological-only instruction beats doing nothing (g=0.57) but LOSES to print-integrated instruction (g=-0.54). Speech-only PA is not the efficient lever; tying phonemes to letters is.
Genetic confound
Experimental base.
Replication notes
Confirms NELP's 'PA needs letters' from the opposite direction.

Effects

OutcomeMetricValueMeasureTimingVsHorizonClass
PA-only vs untreated comparisong0.57mixedend-of-treatmentbusiness-as-usualend-of-treatmentdomain-skill
PA-only vs PRINT-based instructiong-0.54 (print-based wins)mixedend-of-treatmentactive-alternativeend-of-treatmentdomain-skill

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