Learner preferences for varying screen density levels were examined using multiple screen designs (high external validity) and single screen designs (high internal validity). Subjects were 23 graduate and 23 undergraduate student volunteers. When viewing multiple screens for each design in Study I, they indicated the highest preference for medium…

Outlines the principles of user control, pacing, design quality, frame-oriented messaging, self-evident structure, self-contained components, and visual information in interactive videodisc design. The concepts of user friendliness, normal path and user-interrupt interactions, and screen design are also discussed. (MBR)

Brief description of videotex systems is followed by recommendations for the design of database structure, command language, and screen format. How users search through the database is described and evaluations of the underlying tree structure are reviewed. Information sources on other aspects of videotex besides usability are listed. (MBR)

Investigates the effects of single- and multiple-window displays on the achievement of fourth-grade students during computer-assisted instruction by applying research-based window design guidelines. Results showed that, although there were no differences in window use, high ability students in the single window treatment demonstrated higher…

Discusses factors that should be considered when comparing microcomputer software for small and medium-sized library catalogs and describes eight specific packages--BRS/Search Micros/Mini Version, Card Catalog, Golden Retriever, INMAGIC, TEQLIB, FINDER, SCIMATE, and STAR. (Author/MBR)

Provides an overview of the potential of hypermedia as an instructional medium and discusses research that has investigated learning outcomes. Discusses instructional design considerations to guide developers and designers of hypermedia systems, including learner characteristics and elements of content presentation such as text structure,…

Suggests that insights from other disciplines be considered when evaluating computer-assisted language instruction materials. Issues which need to be considered when evaluating these materials include: design issues, user-machine interfacing, support documentation, screen layout, color and animation, and restricted visual display capacity. (SED)

Considers demands on the reader of printed material displayed on the video screen. Ways that electronic media can engender and foster reading skills are discussed, including use of graphics in video displays and ways educationalists may contribute to development of videotext and software to teach reading. (40 references) (MBR)