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Light, Richard J. – Educational Researcher, 1979
In comparing several research and evaluation studies, the author contends that variation in outcomes may provide clues to valuable information. Five examples are used to illustrate how conflicting findings can be useful. (RLV)
Descriptors: Comparative Analysis, Educational Research, Research Utilization, Synthesis
Peer reviewed Peer reviewed
Glass, Gene V. – Educational Researcher, 1979
Most of the variance in educational effectiveness studies is inexplicable in terms of influences that can be measured and controlled. Nevertheless, it is still possible to design educational policy that will function well under conditions of uncertainty. (Author/RLV)
Descriptors: Comparative Analysis, Educational Policy, Educational Research, Multiple Regression Analysis