Discusses three experiments conducted with undergraduates to investigate important characteristics of mental models, their influence on task performance, and instructional strategies facilitating their formation. Results suggest that dynamic visual displays are more effective than static visual displays for teaching electronic troubleshooting…

Describes factors to be considered in the design of ergonomically correct workstations for online searchers. Topics discussed include visual factors, including lighting; acoustical factors; radiation and visual display terminals (VDTs); screen image characteristics; static electricity; hardware and equipment; workstation configuration; chairs;…

Discusses health concerns associated with the use of video display terminals (VDT) and provides guidelines to enhance the performance of VDT users. Health issues addressed include radiation, musculoskeletal, psychological, and visual concerns. Guidelines for a well-designed VDT environment are also presented, including hardware considerations,…