College of Social Work, University of South Carolina, 1512 Pendleton Street, Suite 106, Columbia, SC, USA.
College of Social Work, University of South Carolina, 1514 Pendleton Street, Suite 302, Columbia, SC, USA.
J Racial Ethn Health Disparities. 2020 Aug;7(4):746-759. doi: 10.1007/s40615-020-00702-0. Epub 2020 Jan 29.
To evaluate whether computer-based prostate cancer screening decision aids enhance decision self-efficacy for African-American men, culturally relevant and reliable measures are needed. However, limited psychometric evidence exists on the health-related decision self-efficacy of African-American men. This study describes the development and psychometric evaluation of the 11-item Informed Prostate Cancer Screening Decision Self-Efficacy Scale among 354 African-American men.
Exploratory factor analysis was conducted with maximum-likelihood estimation and polychoric correlations followed by Promax and Varimax rotations.
Exploratory factor analysis yielded a one-factor, 11-item model of the modified scale with excellent internal consistency reliability at 0.95 and factor loadings ranging from 0.70 to 0.90. Both parallel analysis and a scree plot confirmed the retention of one factor, and the standardized root mean square residual (0.06) indicated that the factor structure explained most of the correlations.
Findings suggest the one-factor, 11-item Informed Prostate Cancer Screening Decision Self-Efficacy Scale has excellent psychometric properties and utility in reliably measuring health-related decision self-efficacy in African-American men. Future research is needed to confirm this factor structure among socio-demographically diverse African Americans.
评估基于计算机的前列腺癌筛查决策辅助工具是否能增强非裔美国男性的决策自我效能感，这就需要使用文化上相关且可靠的措施。然而，关于非裔美国男性健康相关决策自我效能感的心理测量学证据有限。本研究描述了在 354 名非裔美国男性中，11 项知情前列腺癌筛查决策自我效能感量表的开发和心理测量评估。
采用最大似然估计和多项式相关进行探索性因子分析，随后进行 Promax 和 Varimax 旋转。
探索性因子分析得出了一个由 11 个项目组成的单因素修正量表模型，其内部一致性信度为 0.95，因子负荷范围为 0.70 至 0.90。平行分析和陡坡图均证实保留了一个因素，标准化根均方残差（0.06）表明该因子结构解释了大部分相关性。
研究结果表明，由 11 个项目组成的单因素知情前列腺癌筛查决策自我效能感量表具有良好的心理测量学特性和实用性，可在非裔美国男性中可靠地测量与健康相关的决策自我效能感。未来需要在社会人口统计学上多样化的非裔美国人中进一步确认该因子结构。
