Transcription of Experimental Method - Indiana University …
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Experimental Method - Indiana University …
Y520 Spring 2000 Page 1 Michael Y520 Experimental Method The best Method indeed the only fully compelling Method of establishing causation is to conduct a carefully designed experiment in which the effects of possible lurking variables are controlled. To experiment means to actively change x and to observe the response in y (p. 202). Moore, D., & McCabe, D. (1993). Introduction to the practice of statistics. New York: Freeman. The Experimental Method is the only Method of research that can truly test hypotheses concerning cause-and-effect relationships. It represents the most valid approach to the solution of educational problems, both practical and theoretical, and to the advancement of education as a science (p. 298). Gay, L. R. (1992). Educational research (4th Ed.). New York: Merrill. Importance of Good Design: ( * ) 100% of all disasters are failures of design, not analysis. Ron Marks, Toronto, August 16, 1994 To propose that poor design can be corrected by subtle [statistical] analysis techniques is contrary to good scientific thinking.
Y520 — Spring 2000 Page 1 Experimental Method “The best method — indeed the only fully compelling method — of establishing causation is to conduct a carefully
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