Argues that too much of the wrong kind of research has been carried out, using inappropriate methods, and proposes a framework for investigating the effectiveness of educational media. Twenty-seven references are listed. (LLS)

This study examines alternatives to direct transmission of television and radio programs for courses with low student enrollment at the Open University. Examined are cut-off points in terms of student numbers at which alternative means of distributing audio or audio-visual materials become more economical than direct television or radio…

This study is aimed primarily at the administration of a newly established institute for distance education in Norway, Norsk fjernundervisning (NFU). Purposes of the project, in order of priority, were to provide (1) a working document for the administration of NFU, mapping out available resources, choices of possible media combinations, and the…