"The results of research on the effectiveness of four alternative instructional media are reviewed: traditional classroom instruction, instructional radio, instructional television, programed instruction, and computer-assisted instruction (CAI). It was concluded that students learn effectively from
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all these media; relatively few studies indicate significant differences between media in effectiveness. Future research should focus on four areas: 1) determine if programed instruction and CAI can be shown to save instructional time over a longer period and with a higher percentage of students; 2) investigate long-term effects of instructional technologies on students' motivations; 3) investigate the long-term effects of the individualization and privacy made possible by some of the technologies; and 4) future investigations should consider more imaginative uses of new technologies instead of using technology to provide a simulation of some traditional method." (http://files.eric.ed.gov)
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"The research underlying these case studies was done by the International Institute for Educational Planning in 1965-66 under a contract with the United States Agenciy for International Development, which gave the Institute full freedom of research and the right to publish its findings for general i
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nternational use. The project was directed for the Institute by Wilbur Schramm. His principal collaborators at the Institute were Philip H. Coombs, director of IIEP, Friedrich Kahnert, and Jack Lyle." (Page 4)
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