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Gains in science proficiency at age 15 from beginning ECEC at age 3 versus age 5 ...

„PISA results show that the gains in science proficiency at age 15 from beginning ECEC (Anm.: ECEC = Early Childhood Education and Care) at age 3 versus age 5 are greater for children of immigrants compared with children of non-immigrants.“
Dr. Elizabeth A. Shuey u. a., „The Power and Promise of Early Learning“ (2018), S. 57