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Shen, Zuchao; Curran, F. Chris; You, You; Splett, Joni Williams; Zhang, Huibin – Educational Evaluation and Policy Analysis, 2023
Programs that improve teaching effectiveness represent a core strategy to improve student educational outcomes and close student achievement gaps. This article compiles empirical values of intraclass correlations for designing effective and efficient experimental studies evaluating the effects of these programs. The Early Childhood Longitudinal…
Descriptors: Children, Longitudinal Studies, Surveys, Teacher Empowerment
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Lewis Presser, Ashley; Clements, Margaret; Ginsburg, Herbert; Ertle, Barbrina – Early Education and Development, 2015
Research Findings: Big Math for Little Kids (BMLK) is a mathematics curriculum developed for use with 4- and 5-year-old children. To investigate the BMLK curriculum's effect on children's mathematics knowledge, this cluster-randomized controlled trial randomly assigned child care centers to provide mathematics instruction to children, using either…
Descriptors: Preschool Curriculum, Preschool Education, Preschool Children, Kindergarten