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Direct linkSam, Ann M.; Odom, Samuel L.; Tomaszewski, Brianne; Perkins, Yolanda; Cox, Ann W. – Grantee Submission, 2020
The purpose of this study was to test the efficacy of a comprehensive program model originally developed by the National Professional Development Center on Autism Spectrum Disorder (NPDC). Sixty elementary schools with 486 participants were randomly assigned to an NPDC and services as usual condition (SAU). Significantly greater changes in program…
Descriptors: Autism, Pervasive Developmental Disorders, Children, Evidence Based Practice
Atteberry, Allison; Bassok, Daphna; Wong, Vivian C. – Educational Evaluation and Policy Analysis, 2019
This study is a randomized control trial of full- versus half-day prekindergarten (pre-K) in a school district near Denver, Colorado. Four-year-old children were randomly assigned an offer of half-day (4 days/week) or full-day (5 days/week) pre-K that increased class time by 600 hours. The full-day pre-K offer produced substantial, positive…
Descriptors: School Schedules, Preschool Education, School Readiness, Program Effectiveness
Lipsey, Mark W.; Farran, Dale C.; Hofer, Kerry G. – Peabody Research Institute, 2015
In 2009, Vanderbilt University's Peabody Research Institute, in coordination with the Tennessee Department of Education's Division of Curriculum and Instruction, initiated a rigorous, independent evaluation of the state's Voluntary Prekindergarten program (TN- VPK). TN-VPK is a full-day prekindergarten program for four-year-old children expected…
Descriptors: Preschool Education, Outcomes of Education, Randomized Controlled Trials, State Programs
