| Summary: | 博士 === 國立中正大學 === 資訊管理學系 === 99 === Most research on technology acceptance (TAM) used behavioral intention as the proxy of actual behavior. However, whether intention can accurately predict behavior requires further examination. Backed by their abundant results, studies based on Theory of Reasoned Behavior and Theory of Planned Behavior found that intention itself is not sufficient as a single variable to predict behavior. In comparison, very few TAM-based studies focused on the measurement of behavior, as well as potential variables between intention and behavior and how these variables affect behavior. We extend the studies of behavioral science and social cognition on moderator and mediated moderation into the MIS discipline by adopting the TAM as the theoretical foundation to explore the moderators and mediated moderation effects of the intention-behavior relationship. A brand new nursing information system serves as the target system with nursing staff as the system’s potential users. A cross-sectional questionnaire survey was conducted to collect data from the 245 nursing staff of a medical center located in central Taiwan.
Our research results show that intention stability and prior experience moderate the relationship between behavior intention and usage behavior. Besides, intention stability mediates the moderator prior experience. Our research also reveals that it is not appropriate to use intention as the proxy of behavior because of its limited predicting power for behavior. However, the power can be increased by adding other mediators and moderators. To convince users to adopt a system we have to assist the users to familiarize themselves with the system’s functions and usefulness, thereby increasing their intentions to use it. For those lacking experience and/or willingness, trainings and practices are keys to promoting their familiarity with a system, which can eventually attenuate their initial resistance and shorten the gap between their intention and behavior.
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