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Ma, Lingling; Cronin, John – Northwest Evaluation Association, 2009
Virtual Comparison Groups (VCG) were developed by the Northwest Evaluation Association as an alternative to conventional controlled experiments for social science researchers working in the field of education. The VCG is generally a group of up to 51 students who are matched, based on key characteristics of the student and school, to a single…
Descriptors: Social Science Research, Comparative Analysis, Sampling, Student Characteristics
Kingsbury, G. Gage; Hauser, Carl – Northwest Evaluation Association, 2004
Among the changes in education called for under the No Child Left Behind act is the need for states to test students in a number of grades and subject areas. Scores from these tests are to be used for a variety of purposes, from identifying whether individual students are proficient, to helping determine whether schools are causing adequate growth…
Descriptors: Federal Legislation, Computer Assisted Testing, Adaptive Testing, Educational Assessment

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