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Peer reviewedKellow, J. Thomas – American Journal of Evaluation, 1998
Many evaluation students are still being taught the use of tests of statistical significance without being warned about their limitations. This paper discusses other estimates of treatment effects necessary to interpret between-group differences correctly. Sources to improve evaluation practice are also suggested. (SLD)
Descriptors: Estimation (Mathematics), Evaluation Utilization, Groups, Probability
Download full textMadhere, Serge – 1986
One of the most appropriate quasiexperimental approaches to compensatory education is the regression-discontinuity design. However, it remains underutilized, in part because of the need to clarify the link between the mathematical model and administrative decision-making. This paper explains the derivation of a program efficiency index congruent…
Descriptors: Compensatory Education, Cutting Scores, Effect Size, Elementary Education
