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

Prostate cancer screening in Black men: Screening intention, knowledge, attitudes, and reasons for participation

The objective of the present study is to capture the prostate cancer screening intention, knowledge levels, attitudes, and reasons for participation in screening among African American men. African American men aged from 35 to 65 in Georgia, North Carolina, and Ohio were recruited for study (N = 168). Questionnaires were administered using validated instruments. Findings suggest critical needs for community-based social workers to communicate the importance of prostate cancer screening and risk factors among African American men. Increasing the use of culturally relevant community health education might benefit underserved minority men at risk of having prostate cancer.

Adaptation and Initial Psychometric Evaluation of an Informed Prostate Cancer Screening Decision Self-Efficacy Scale for African-American Men

OBJECTIVE

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.

METHODS

Exploratory factor analysis was conducted with maximum-likelihood estimation and polychoric correlations followed by Promax and Varimax rotations.

RESULTS

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.

CONCLUSIONS

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.