Much of the research on classroom use of educational media has been hampered by difficulties in isolating a single element of the medium--television programming, for instance--that influences behavior in a reliable way. Still, each medium facilitates a particular type of learning environment, and the collective characteristics of those…

Intended as a method of increasing children's learning from commercial television by providing supplementary educational commentary on a simultaneous radio broadcast, this study was designed to explore the potential of dual audio instruction as a mass educational system by determining the medium's practicality, the rate of voluntary usage, the…