Saturday, October 29, 2022

Policy for the Unpredictable. (1979). Educational Researcher, Vol. 8, No. 9, Pp. 12-14.

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Evaluating testing, maturation, and gain effects in a pretest-posttest quasi-experimental design

1965 Glass, G.V. (1965). Evaluating testing, maturation, and gain effects in a pretest-posttest quasi-experimental design. American Edu...