This study proposed and tested a measurement model of religiosity among a sample of older (55 years of age and above) Black Americans. This model incorporates three correlated dimensions of religious involvement, termed organizational, nonorganizational, and subjective religiosity. Findings indicate that the proposed model provides a good fit to the data, is preferable to other alternative models, and exhibits convergent validity with respect to exogenous or antecedent variables (age, gender, marital status, income, education, urbanicity, and region) known to predict religious involvement. In addition, these antecedents exhibit stronger effects on subjective religiosity than on the two more behavioral dimensions of religiosity. Interpretation of these status-group differences in religiosity focuses on socialization experiences and social environment factors which may promote a religious world-view.