Division of Nursing, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden.
Worldviews Evid Based Nurs. 2012 Aug;9(3):139-48. doi: 10.1111/j.1741-6787.2012.00248.x. Epub 2012 Mar 27.
Beliefs about capabilities, or self-efficacy, is a construct originating in social cognitive psychology. Capability beliefs have been found to be positively associated with intention and healthcare practice behaviour. A measure of an individual's beliefs about his/her capability to apply the components of evidence-based practice (EBP) has potential to be useful in implementation research.
To evaluate the concurrent validity and internal structure of a new scale measuring nurses' capability beliefs regarding EBP.
Data were taken from a prospective longitudinal study in Sweden (the Longitudinal Analyses of Nursing Education and Entry in Worklife [LANE]). A cohort of nursing students who graduated in the autumn of 2004 that was followed up 2 years after their graduation was used (n= 1,256). Concurrent validity was tested relating different levels of capability beliefs to extent of research use and application of EBP. An item-response approach was applied in the evaluation of internal structure of the proposed scale (six items).
The psychometric analyses indicated that the six items could be summed to reflect a one-dimensional scale. Nurses with the highest level of capability beliefs reported that they used research findings in clinical practice more than twice as often as those with lower levels of capability beliefs. They also participated in the implementation of evidence seven times more often.
There is a need for further studies of the construct and predictive validity of the scale. It should also be validated in other groups of health professionals. Learning including mastery experiences, role modelling, social persuasion, and manageable stress could be used in undergraduate education as well as practice development to increase beliefs about capabilities which might open the way to increased application of EBP in healthcare practice.
This new measure is well grounded in social cognitive theory, functions as a one-dimensional scale and possesses promising properties of concurrent validity.
能力信念，或自我效能感，是源自社会认知心理学的一个概念。能力信念已被发现与意图和医疗保健实践行为呈正相关。衡量个体对应用循证实践（EBP）各个组成部分的能力信念的指标，有可能在实施研究中发挥作用。
评估一种新的衡量护士对 EBP 能力信念的量表的同时效度和内部结构。
数据来自瑞典的一项前瞻性纵向研究（纵向分析护理教育和就业入门[LANE]）。使用了 2004 年秋季毕业并在毕业后两年进行跟踪的护理学生队列（n=1256）。通过将不同水平的能力信念与研究使用程度和 EBP 的应用程度相关联，测试了同时效度。应用项目反应方法评估了拟议量表的内部结构（六个项目）。
心理测量分析表明，六个项目可以加总以反映一个一维量表。能力信念水平最高的护士报告说，他们在临床实践中使用研究结果的频率是能力信念水平较低的护士的两倍多。他们也更频繁地参与证据的实施。
需要进一步研究该结构和量表的预测效度。它还应在其他卫生专业人员群体中进行验证。学习包括掌握经验、角色建模、社会说服和可管理的压力，可以在本科教育以及实践发展中使用，以增加对能力的信念，这可能为在医疗保健实践中增加 EBP 的应用开辟道路。
这个新的衡量标准很好地植根于社会认知理论，作为一个一维量表运作，并且具有同时效度的有希望的特性。
