California’s Kindergarten Readiness Act of 2010 established transitional kindergarten (TK), the first year of a two-year kindergarten program for students affected by the change in the birthdate cutoff for entry into kindergarten from December 2 to September 1. This final report from the program’s evaluation focuses on results from a five-year study. The study used a rigorous regression discontinuity design to examine whether TK, as a new approach to prekindergarten education for age-eligible students, leads to positive outcomes, for which students, and under what conditions.
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12 May 2017
This fifth brief in a series highlighting findings from the Study of California’s Transitional Kindergarten Program summarizes what we have learned about the impact of TK on EL students’ school readiness skills, including mathematics skills, language and literacy skills, and English proficiency.