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Download full textResch, Alexandra; Berk, Jillian; Akers, Lauren – National Center for Education Evaluation and Regional Assistance, 2014
An opportunistic experiment is a type of randomized controlled trial that studies the effects of a planned intervention or policy change with minimal added disruption and cost. This guide defines opportunistic experiments and provides examples, discusses issues to consider when identifying potential opportunistic experiments, and outlines the…
Descriptors: Educational Experiments, Educational Research, Intervention, Educational Policy
Puma, Michael; Bell, Stephen; Shapiro, Gary; Broene, Pam; Cook, Ronna; Friedman, Janet; Heid, Camilla – 2001
Along with the rapid expansion over the past decade of Head Start, a program providing comprehensive early childhood development services to low-income children, their families, and their communities, has come the demand for rigorous research to demonstrate program effectiveness. This report describes the proposed design of a national study of the…
Descriptors: Compensatory Education, Data Analysis, Data Collection, Delivery Systems
