In this study, we examined the effectiveness of instructional materials designed to control redundancy and split attention in the teaching of complex orthopedic physical therapy skills. Participants included 41 first-year physical therapy students. The modified instruction group received a modified unit of instruction designed to reduce cognitive…

The purpose of this article is to review and critique each of the research studies published in this special issue. We will critique each article, derive one or more instructional design heuristics based on the findings for each study, and provide recommendations for extending particular lines of research. Three suggestions are provided concerning…

Investigates the effect of camera angle and monitor placement in a distance learning environment where a videotape of a lecture was used. Results suggest that an eye-level camera and multiple monitors with groups of 4-5 students positively influence instructor credibility, immediacy, and interactions. (AEF)

Proposes directions to help researchers balance instructional technology goals with the performance of well-designed and scientifically sound studies. Issues concerning the external validity of studies, use of media replications, and learner control as a means of adapting instructional strategies to individuals are emphasized, and designs for…

This study examined learner-control strategies for selecting problem context and level of instructional support on a computer-based mathematics unit on the metric system. Subjects were 240 sixth grade students assigned to 15 treatments. Performance was lowest under learner-control instructional support conditions even though subjects indicated…

Discussion of learner preferences for text densities on computer screen displays highlights two studies of college students that compared preferences for multiple or single screen presentations with high-, medium-, or low-density screens from an actual course using computer-assisted instruction. Results are analyzed, and further research needs are…

Critiques articles by Robert Kozma (IR 529 138) and Richard Clark (EJ 294 173) on the influence of media on learning. The author argues that Clark and Kozma are raising different questions and suggests that researchers focus on the effectiveness of whole units of instruction rather than on individual components. (Contains 14 references.) (KRN)