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Prior research on instructional media effects suggested that an audiographic approach to World Wide Web based courses would optimize educational effectiveness along with cost effectiveness, although with a possible loss of teacher immediacy that could adversely affect student attitudes. An introductory telecommunication course was converted to an audiographic Web telecourse in which students listened to pre-recorded audio classroom interactions while viewing a detailed course outline and illustrative sites over the World Wide Web. Forty-nine subjects were recruited from a live lecture class and randomly assigned to either the experimental (Web course) group or a control group that took the class in a traditional lecture section. Analysis of covariance (ANCOVA) showed that the experimental group had test scores and student attitude and teacher immediacy ratings equal to those of the control group after controlling for student gender, class level, grade point average and attendance. Open-ended interviews were also conducted to assess qualitative dimensions of student satisfaction. The results supported the audiographic telecourse model as a potentially cost-effective approach to distributing courses over the Web. New directions in research on instructional media effects and teacher immediacy were formulated from an analysis of the unique characteristics of the World Wide Web as an instructional medium.
LaRose et al. (Fri,) studied this question.
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