Information technology (IT) acceptance research has yielded many competing models, each with different sets of acceptance determinants. In this paper, we (1) review user acceptance literature and discuss eight prominent models, (2) empirically compare the eight models and their extensions, (3) formulate a unified model that integrates elements across the eight models, and (4) empirically validate the unified model. The eight models reviewed are the theory of reasoned action, the technology acceptance model, the motivational model, the theory of planned behavior, a model combining the technology acceptance model and the theory of planned behavior, the model of PC utilization, the innovation diffusion theory, and the social cognitive theory. Using data from four organizations over a six-month period with three points of measurement, the eight models explained between 17 percent and 53 percent of the variance in user intentions to use information technology. Next, a unified model, called the Unified Theory of Acceptance and Use of Technology (UTAUT), was formulated, with four core determinants of intention and usage, and up to four moderators of key relationships. UTAUT was then tested using the original data and found to outperform the eight individual models (adjusted R 2 of 69 percent). UTAUT was then confirmed with data from two new organizations with similar

Acceptance of Information Technology by health research projects in low-income countries Introduction: To better understand the data collector’s intention to use and acceptance of using, Centre for International Health (CIH) University of Bergen (UIB) wanted feedback on introduction of EpiHandy, by using the PROMISE EBF Mbale site in Uganda as a pilot for collecting health data in low income countries using PDA. The aim was to uncover some of the factors influencing or affecting the

The ability of firms to retain valued knowledge and skills possessed by accounting professionals depends, in part, on creating a work environment that positively affects accountants ’ job-related attitudes and behaviors. A first step in achieving this objective is to identify those variables that are related to accountants ’ work attitudes and behaviors. Previous research has examined antecedent causes of, for example, accountants ’ job satisfaction, performance, organizational commitment, and role stress. Two limitations of the extant research are that subjects have almost always been auditors and no consideration has been given to the fact that accountants may react differently to their work environment depending on where they are in their careers. This study addresses these two limitations of prior research by examining whether tax accountants ’ work attitudes and behaviors differ across four common career stages: exploration, establishment, maintenance, and disengagement. The association of gender with tax accountants ’ work attitudes also was tested. Results indicate that career stage is significantly related to tax accountants ’ performance and job-related tension, but

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