Blue Carolyn L, Marrero David G, Black David R
School of Nursing, The University of NorthCarolina-Greensboro, P.O. Box 26170, Greensboro, NC 27402-6170, USA
Health Educ Behav. 2008 Jun;35(3):316-31. doi: 10.1177/1090198106297060. Epub 2007 Jul 9.
This article describes the development and psychometric evaluation of behavioral belief, normative belief, and control belief scales, derived from the theory of planned behavior to predict physical activity intentions of persons at risk for diabetes. In Study 1, belief statements from interviews were categorized, ranked, and evaluated for item construction. Content validity was established by 96.1% agreement among a five-member expert panel. In Study 2, items developed from the belief statements were administered to 106 adults at risk for diabetes. Psychometric analyses provided evidence of construct validity and reliability of the three scales. Internal consistency was sufficient (alpha = .76-.95), and test-retest evaluations indicated scale stability (r = .79-.91). Factor analyses and confirmatory factor analysis using structural equation modeling provided evidence that the items were appropriately grouped under each construct. Researchers and practitioners can use these measures to assess behavioral, normative, and control beliefs about physical activity among persons at risk for diabetes.
本文描述了行为信念、规范信念和控制信念量表的开发及心理测量评估，这些量表源自计划行为理论，用于预测糖尿病高危人群的身体活动意向。在研究1中，对访谈中的信念陈述进行分类、排序并评估项目构建。由五名专家组成的小组达成96.1%的共识，确立了内容效度。在研究2中，将根据信念陈述开发的项目施测于106名糖尿病高危成年人。心理测量分析为这三个量表的结构效度和信度提供了证据。内部一致性足够（α = 0.76 - 0.95），重测评估表明量表具有稳定性（r = 0.79 - 0.91）。使用结构方程模型进行的因素分析和验证性因素分析提供了证据，表明这些项目在每个结构下都得到了适当分组。研究人员和从业者可以使用这些测量方法来评估糖尿病高危人群对身体活动的行为、规范和控制信念。
