At the beginning of the 1980s, Richard Clarke conducted a well-known meta-analysis
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of this type of educational technology research and concluded that media are
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“mere vehicles that deliver instruction but do not influence achievement
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any more than the truck that delivers our groceries causes changes in our nutrition”
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(1983, p. 445). This perspective might be termed the transmission model of educational
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technology – the view that technology is a delivery mechanism with no
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unique capacity or capabilities that might intrinsically affect learning.
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