Abstract
Due in part to the diverse characteristics and training of its researchers, the field of instructional technology is currently plagued by much uncertainty regarding meaningful research questions and accepted paradigms for investigating them. Major areas in which these uncertainties are manifested concern the degree of emphasis to be placed on basic versus developmental research and considerations involving the separation of media from methods in research designs. To help researchers achieve a “happier medium” in balancing instructional technology goals with the performance of well-designed and scientifically sound studies, greater attention to three concerns is advocated: the external validity of studies to increase the relevance of findings to applied technologies; usage of media replications to test the generalizability of findings obtained with individual media and to demonstrate delivery applications; and learner control as a potentially effective and practical means of adapting validated instructional strategies to individuals. Each of these issues is discussed in relation to research conducted by the authors and to suggested designs for future studies.
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