A technology acceptance model for empirically testing new end-user information systems : theory and results
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Cites methods from "A technology acceptance model for e..."
...Extrapolating from past studies, the formula suggests that 10 items would be needed for each perceptual variable to achieve reliability of at least .80 (Davis, 1986)....
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Cites background from "A technology acceptance model for e..."
...As Davis argued, ease of use may act indirectly on intentions to use through usefulness [24, 25]....
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...It is important to note that the two new variables— trust and perceived risk—are placed within the nomological structure of the original model and are compatible with TAM variables that have already been placed within the TRA framework [24, 25]....
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...In order to provide a solid theoretical basis for selecting influential driving factors, this paper integrates two important streams of literature under the nomological structure of the theory of reasoned action (TRA) [3, 33, 71]: (a) the technology acceptance model (TAM) [24, 25, 26], and (b) the literature on trust and risk [7, 29, 30, 47, 53, 58, 59]....
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...Therefore, intentions to use the Internet for on-line transactions should consider the major TAM constructs, which theorize that perceived usefulness and perceived ease of use determine actual system use [24]....
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...The general premise is that perceived usefulness directly influences intention, but perceived ease of use acts indirectly through usefulness [24]....
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