An experiment designed to determine the aptitude level(s) and group size which would provide optimal feedback for formative evaluation of instructional materials found that revisions based on feedback from one-to- one sessions with a mixed aptitude group were more effective than those based on feedback from a group or single aptitude level. (EAO)

Compares the use of computer-based training (CBT) and interactive videodisc (IVD) for education and training. Highlights include research about CBT, including administrative strengths, cost effectiveness, motivation, feedback, and lesson control; steps involved in producing CBT and IVD materials; research about IVD, including content and learner…

Comparison of costs and effectiveness of using student data for formative evaluation of instructional materials and of using instructional editing guidelines incorporating attributes of effective instruction indicate greater cost-effectiveness if guidelines are used, with no significant difference in instructional effectiveness. Subjects were 70…

This discussion of the cost-effectiveness and cost-efficiency of media-based distance education focuses on a comparison of British Open University and conventional university costs. Expenses of instructional materials and their preparation are discussed in relation to student enrollment, and future possibilities for home-based systems are…