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Explaining information technology usage: A test of competing models

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  • Premkumar, G.
  • Bhattacherjee, Anol

Abstract

While much of the prior information technology (IT) research has attempted to explain users' acceptance of new IT, recent research has focused on IT continuance or continued usage. The technology acceptance model (TAM) and the expectation-disconfirmation theory (EDT) are currently the dominant referent theoretical frameworks explaining user acceptance and continuance of IT, respectively. However, no study to date has yet empirically compared the relative ability of the two competing theories in explaining IT continuance intention. This paper fills this gap in the literature by comparing the explanatory ability of the two models via a longitudinal study of computer-based tutorial usage. Our findings confirm that both models have good explanatory power with the TAM providing a better prediction of intention. An integrated model, combining TAM and EDT, provided a marginally better explanatory power.

Suggested Citation

  • Premkumar, G. & Bhattacherjee, Anol, 2008. "Explaining information technology usage: A test of competing models," Omega, Elsevier, vol. 36(1), pages 64-75, February.
    • Handle: RePEc:eee:jomega:v:36:y:2008:i:1:p:64-75
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    References listed on IDEAS

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