Hatz Maximilian H M, Sonnenschein Tim, Blankart Carl Rudolf
Hamburg Center for Health Economics, Universität Hamburg, Hamburg, Germany.
Hamburg Center for Health Economics, Universität Hamburg, Hamburg, Germany; Center for Gerontology and Health Care Research, Brown University School of Public Health, Providence, RI, USA.
Value Health. 2017 Apr;20(4):533-541. doi: 10.1016/j.jval.2016.12.002. Epub 2017 Jan 24.
Studies have often stated that individual-level determinants are important drivers for the adoption of medical devices. Empirical evidence supporting this claim is, however, scarce. At the individual level, physicians' adoption motivation was often considered important in the context of adoption decisions, but a clear notion of its dimensions and corresponding measurement scales is not available.
To develop and subsequently validate a scale to measure the motivation to adopt medical devices of hospital-based physicians.
The development and validation of the physician-motivation-adoption (PMA) scale were based on a literature search, internal expert meetings, a pilot study with physicians, and a three-stage online survey. The data collected in the online survey were analyzed using exploratory factor analysis (EFA), and the PMA scale was revised according to the results. Confirmatory factor analysis (CFA) was conducted to test the results from the EFA in the third stage. Reliability and validity tests and subgroup analyses were also conducted.
Overall, 457 questionnaires were completed by medical personnel of the National Health Service England. The EFA favored a six-factor solution to appropriately describe physicians' motivation. The CFA confirmed the results from the EFA. Our tests indicated good reliability and validity of the PMA scale.
This is the first reliable and valid scale to measure physicians' adoption motivation. Future adoption studies assessing the individual level should include the PMA scale to obtain more information about the role of physicians' motivation in the broader adoption context.
研究经常指出，个体层面的决定因素是医疗设备采用的重要驱动因素。然而，支持这一说法的实证证据却很稀少。在个体层面，医生的采用动机在采用决策的背景下通常被认为很重要，但对于其维度和相应的测量量表却没有清晰的概念。
开发并随后验证一个量表，以测量医院医生采用医疗设备的动机。
医生采用动机（PMA）量表的开发和验证基于文献检索、内部专家会议、针对医生的预试验研究以及三阶段在线调查。使用探索性因素分析（EFA）对在线调查收集的数据进行分析，并根据结果对PMA量表进行修订。在第三阶段进行验证性因素分析（CFA）以检验EFA的结果。还进行了信效度测试和亚组分析。
总体而言，英国国家医疗服务体系的医务人员共完成了457份问卷。EFA支持采用六因素解决方案来恰当描述医生的动机。CFA证实了EFA的结果。我们的测试表明PMA量表具有良好的信效度。
这是首个用于测量医生采用动机的可靠且有效的量表。未来评估个体层面的采用研究应纳入PMA量表，以获取更多关于医生动机在更广泛采用背景下所起作用的信息。
