Discussion of research problems in instructional technology emphasizes two main needs: (1) development of a prescriptive research methodology; and (2) more front end analysis that produces a distinction between instructional design research and instructional development research. Two examples of research using the prescriptive technology approach…

The suspected sources of confounding in current meta-analytic studies of computer based instruction (CBI) are uncontrolled effects of instructional method and/or the John Henry Effect (i.e., compensatory rivalry). To determine which confounding is most plausible, a random 30% sample of the 128 studies which formed the original Kulik meta-analyses…