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Direct linkJacob, Robin; Zhu, Pei; Bloom, Howard – Journal of Research on Educational Effectiveness, 2010
This article provides practical guidance for researchers who are designing studies that randomize groups to measure the impacts of educational interventions. The article (a) provides new empirical information about the values of parameters that influence the precision of impact estimates (intraclass correlations and R[superscript 2] values) and…
Descriptors: Research Design, Research Methodology, Educational Research, Intervention
PDF pending restorationVoices for Illinois Children, Chicago. – 1992
In 1986, Illinois implemented the Children at Risk of Educational Failure preschool program. By the 1991-1992 school year, almost 25,000 children were enrolled in the program. This document reports on accessibility to, and community involvement in, the program, and instructional and evaluation practices used in the program. The section on…
Descriptors: Access to Education, Agency Cooperation, At Risk Persons, Breakfast Programs
