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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
Utah State Univ., Logan. Early Intervention Research Inst. – 1986
The report describes activities conducted during a 12-month baseline period preceding a series of longitudinal studies of the costs and effects of various types of early intervention with handicapped children conducted by the Early Intervention Research Institute at Utah State University. A systems theory perspective forms the theoretical base for…
Descriptors: Cost Effectiveness, Data Collection, Disabilities, Educational Research
Levin, Henry M.; And Others – 1984
This study employs meta-analysis and cost-effectiveness instruments to evaluate and compare cross-age tutoring, computer assistance, class size reductions, and instructional time increases for their utility in improving elementary school reading and math scores. Using intervention effect studies as replication models, researchers first estimate…
Descriptors: Class Size, Comparative Analysis, Computer Assisted Instruction, Cost Effectiveness
