Religious Orientation Scale (ROS)

The Religious Orientation Scale (ROS), introduced by Gordon Allport and J. Michael Ross in 1967, is the instrument that operationalized Allport's distinction between two motivational stances toward faith. The extrinsic orientation treats religion as a means to other ends — comfort, security, social standing — while the intrinsic orientation treats faith as the master motive that the believer lives by. The ROS measures the two orientations on separate item sets rather than as opposite ends of one continuum, which means a respondent can score high, low, or moderate on each independently. Allport and Ross used this independence to build a fourfold typology, adding the 'indiscriminately proreligious' (high on both) and 'indiscriminately antireligious' (low on both) categories, and showed that orientation, not mere churchgoing, predicted prejudice.