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Download full textFeller, Avi; Miratrix, Luke – Society for Research on Educational Effectiveness, 2015
The goal of this study is to better understand how methods for estimating treatment effects of latent groups operate. In particular, the authors identify where violations of assumptions can lead to biased estimates, and explore how covariates can be critical in the estimation process. For each set of approaches, the authors first review the…
Descriptors: Computation, Statistical Analysis, Statistical Bias, Outcomes of Treatment
Feller, Avi; Grindal, Todd; Miratrix, Luke; Page, Lindsay C. – Society for Research on Educational Effectiveness, 2014
Head Start programs currently provide early childhood education and family support services to more than 900,000 low-income children and their families across the United States with an annual budget of around $8 billion in state and federal funds. Researchers and policy makers have debated the program's effectiveness since its inception in 1964.…
Descriptors: Early Intervention, Disadvantaged Youth, Child Care, Environmental Influences
