A theoretical extension of the Technology Acceptance Model: Four longitudinal field studies
A theoretical extension of the Technology Acceptance Model: Four longitudinal field studies
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DOI：
10.1287/mnsc.46.2.186.11926
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发表时间：
2000-02-01
影响因子：
5.4
通讯作者：
Davis, FD
中科院分区：
文献类型：
--
作者：
Venkatesh, V;Davis, FD
本研究对技术接受模型（TAM）进行了理论拓展，并对其进行了检验。该拓展模型从社会影响和认知工具性过程的角度解释了感知有用性和使用意图。这个被称为TAM2的拓展模型，是使用从四个组织（N = 156）的四个不同系统收集的纵向数据进行检验的，其中两个涉及自愿使用，两个涉及强制使用。在每个组织的三个时间点对模型结构进行了测量：实施前、实施后一个月和实施后三个月。在所有三个测量点上，四个组织都有力地支持了该拓展模型，该模型解释了有用性感知中40% - 60%的方差以及使用意图中34% - 52%的方差。社会影响过程（主观规范、自愿性和形象）和认知工具性过程（工作相关性、输出质量、结果可展示性和感知易用性）都显著影响了用户接受度。这些发现推进了理论发展，并为未来旨在提高我们对用户采纳行为理解的研究奠定了基础。
The present research develops and tests a theoretical extension of the Technology Acceptance Model (TAM) that explains perceived usefulness and usage intentions in terms of social influence and cognitive instrumental processes. The extended model, referred to as TAM2, was tested using longitudinal data collected regarding four different systems at four organizations (N = 156), two involving voluntary usage and two involving mandatory usage. Model constructs were measured at three points in time at each organization: preimplementation, one month postimplementation, and three months postimplementation. The extended model was strongly supported for all four organizations at all three points of measurement, accounting for 40%-60% of the variance in usefulness perceptions and 34%-52% of the variance in usage intentions. Both social influence processes (subjective norm, voluntariness, and image) and cognitive instrumental processes (job relevance, output quality, result demonstrability, and perceived ease of use) significantly influenced user acceptance. These findings advance theory and contribute to the foundation for future research aimed at improving our understanding of user adoption behavior.