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The problem
Intervention: Preschool attendance (early childhood education)
Who it was tested with: Grade 4 students from 15 education systems, stratified by family language background (test language vs. non-test language at home) and socioeconomic status.
Experience from people who deliver programmes: stories, case studies and lessons learned. Valuable for understanding how and why, and for spotting what to test next, but not a measure of effect.
"Using data from the 15 education systems that participated in all progress in international reading literacy study (PIRLS) cycles, we assess how these gaps have developed over time." The study examines longitudinal relationships between preschool participation and reading achievement across multiple education systems, representing a quasi-experimental design that tracks outcomes over time.
The study identifies the relationship between preschool attendance and reading outcomes but does not establish causality or control for confounding factors that may explain why some families access preschool more than others. The analysis uses international data that may mask important system-level or regional variations.
Across countries and designs
1 study · 0 countries
A reviewer checked the classification against the source.
claude-haiku-4-5-20251001 · synth-v1
