Development and Psychometric Properties of a Prostate CancerKnowledge Scale for African American Men

摘要

African American men have the highest prostate cancer-related mortalitynationally. In response to this disparity, targeted interventions are emergingto enhance African American men’s prostate cancer (PrCA) knowledge to ensurethey are equipped to make informed decisions about PrCA screening withhealth-care providers. African American men’s PrCA knowledge has been measuredinconsistently over time with limited psychometric evidence. The factorstructure of this construct in African American men is relatively unknown. Thisstudy describes the development and psychometric evaluation of an 18-itemProstate Cancer Knowledge Scale among 352 African American men. Exploratoryfactor analysis (EFA) was conducted using weighted least square mean andvariance estimation with Geomin rotation. EFA yielded three factors: (6 items), (5 items), (7 items) withgood internal consistency reliability at KR-20 = .80 for the total scale and.64, .66, and .75, respectively, for each subscale. Factor loadings ranged from.31 to .86. The standardized root mean square residual (0.08) indicated that thefactor structure explained most of the correlations. The three-factor, 18-itemProstate Cancer Knowledge Scale demonstrates that PrCA knowledge is amultidimensional construct and has utility for reliably measuring PrCA knowledgeamong African American men. Future research is required to confirm this factorstructure among socio-demographically diverse African Americans.