Muslim-Christian Religious Orientation Scales: Distinctions, Correlations, and Cross-Cultural Analysis in Iran and the United States

Abstract

Allport and Ross (1967) Religious Orientation Scales were administered along with nine new Muslim-Christian Religious Orientation Scales (MCROS) to students in Iran and the United States. Religious extrinsicness was associated with self-reported symptoms of psychological disturbance; with the Iranians, intrinsicness predicted adjustment. Most relations among the religious variables were positive with the two samples displaying similar, though not identical, patterns of correlations. Factor analysis of all religious scales in each sample separately yielded two components suggesting Allport's differentiation between the intrinsic and extrinsic motivations. In both samples, partial correlations and multiple regressions were used to remove variance associated with the Allport and Ross scales, and at least some evidence testified to the incremental validity of each MCROS measure in predicting psychological symptoms and the other MCROS variables. Most important, this first systematic, empirical study of the psychology of religion in Iran confirmed the relevance of Allport's thought for understanding Muslim religion and established an empirical foundation for further explorations of the MCROS.