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Experimental and Quasi Experimental Designs for Research by Donald T Campbell

This survey originally appeared in N. L. Gage (editor) handbook of Research on Teaching published by Rand McNally Company in 1963, under the longer title "Experimental and Quasi-Experimental Designs for Research on Teaching."
As a result, the introductory pages and many of the illustrations come from educational research. But as a study of the references will indicate, the survey draws from the social science in general, and the methodological recommendations are correspondingly broadly appropriate.
NOTE: Reprinted from Handbook of Research on Teaching
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