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McCoy, Dana Charles; Yoshikawa, Hirokazu; Ziol-Guest, Kathleen M.; Duncan, Greg J.; Schindler, Holly S.; Magnuson, Katherine; Yang, Rui; Koepp, Andrew; Shonkoff, Jack P. – Educational Researcher, 2017
Despite calls to expand early childhood education (ECE) in the United States, questions remain regarding its medium- and long-term impacts on educational outcomes. We use meta-analysis of 22 high-quality experimental and quasi-experimental studies conducted between 1960 and 2016 to find that on average, participation in ECE leads to statistically…
Descriptors: Early Childhood Education, Outcomes of Education, Meta Analysis, Research Design
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Kanu, Mohamed; Hepler, Nancy; Labi, Halima – Journal of Child & Adolescent Substance Abuse, 2015
Background: Since 1984, Students Taking a Right Stand (STARS) Nashville has implemented Student Assistance Programs (SAPs) in the middle Tennessee area, to include 14 counties and 16 school districts. STARS Nashville serves K-12 with a focus in middle and high schools. Methods: The current study reviewed studies that utilized quasi-experimental…
Descriptors: Quasiexperimental Design, Middle Schools, High Schools, Meta Analysis
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Callahan, Carolyn M.; Moon, Tonya R. – Gifted Child Quarterly, 2007
To provide an overview of the specific components that must be considered when making decisions about research in the field of gifted education, the authors describe and evaluate the three types of evidence--speculative or anecdotal, theoretical, and empirical--commonly offered in the literature of the field. Empirical, or evidence-based, research…
Descriptors: Research Design, Gifted, Control Groups, Comparative Analysis