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The aim is to evaluate the efficacy of formative assessment practices based on existing studies.

Formative Assessment: A Meta-Analysis and a Call for Research

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The aim is to evaluate the efficacy of formative assessment practices based on existing studies.
Review of over 300 studies on formative assessment efficacy in K-12 education
Calculation of effect sizes from available studies
Use of a random effects model for meta-analysis
Weighted mean effect size calculated at .20 (95% CI not provided)
Formative assessment more effective in English language arts (effect size .32) compared to mathematics (.17) and science (.09)
Professional development and computer-based systems showed higher efficacy with effect sizes of .30 and .28, respectively.

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Meta-analysis assesses the efficacy of formative assessment in K-12 education, highlighting the need for better research quality.

Kingston et al. (2011) studied this question.

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