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首页> 外文期刊>Decision sciences >Using Davis's Perceived Usefulness and Ease-of-use Instruments for Decision Making: A Confirmatory and Multigroup Invariance Analysis
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Using Davis's Perceived Usefulness and Ease-of-use Instruments for Decision Making: A Confirmatory and Multigroup Invariance Analysis

机译：使用戴维斯的感知有用性和易用性工具进行决策：验证性和多组不变性分析

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摘要

As key components of Davis's technology acceptance model (TAM), the perceived usefulness and perceived ease-of-use instruments are widely accepted among the MIS research community as tools for evaluating information system applications and predicting usage. Despite this wide acceptance, a series of incremental cross-validation studies have produced conflicting and equivocal results that do not provide guidance for researchers or practitioners who might use the TAM for decision making. Using a sample of 902 “initial exposure” responses, this research conducts: (1) a confirmatory factor analysis to assess the validity and reliability of the original instruments proposed by Davis, and (2) a multigroup invariance analysis to assess the equivalence of these instruments across subgroups based on type of application, experience with computing, and gender.In contrast to the mixed results of prior cross-validation efforts, the results of this confirmatory study provide strong support for the validity and reliability of Davis's sixitem perceived usefulness and six-item ease-of-use instruments. The multigroup invariance analysis suggests the usefulness and ease-of-use instruments have invariant true scores across most, but not all, subgroups. With notable exemptions for word processing applications and users with no prior computing experience, this research provides evidence that the item-factor loadings (true scores) are invariant across spread sheet, database, and graphic applications. The implications of the results for managerial decision making are discussed.
机译：作为戴维斯技术接受模型（TAM）的关键组成部分，在MIS研究界中，人们公认的有用性和易用性工具被广泛用作评估信息系统应用程序和预测使用情况的工具。尽管得到了广泛的认可，但一系列增量交叉验证研究却产生了矛盾而模棱两可的结果，但并未为可能使用TAM进行决策的研究人员或从业人员提供指导。本研究使用902个“初始暴露”响应的样本，进行：（1）验证性因子分析，以评估Davis提出的原始仪器的有效性和可靠性，以及（2）多组不变性分析，以评估这些等效性。基于应用类型，计算经验和性别的跨亚组工具。与之前的交叉验证工作的混合结果相反，本次验证性研究的结果为戴维斯六项感知有用性和六项有效性和可靠性提供了有力支持-项目易用性工具。多组不变性分析表明，实用性和易用性工具在大多数（但不是全部）子组中具有不变的真实分数。借助对文字处理应用程序的显着豁免以及没有任何计算经验的用户，这项研究提供了证据，表明在电子表格，数据库和图形应用程序中，项目因子负载（真实分数）是不变的。讨论了结果对管理决策的影响。

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