Attitudinal, normative and effective components of decision-making: further research on multicomponent decision models

Previous research has demonstrated that judgements of intent were significantly related to attitudinal, normative, and (global) affective components of decision making. The research failed, however, to demonstrate the distinctiveness of the three components by obtaining convergent and discriminant validity measures. This limitation is addressed. Multiple methods were used to measure each of the three components. A convergent and discriminant analysis indicated that the three components represented different constructs. In addition, the study replicated previous findings that: (a) the affective component is the best single-component predictor of intent; and (b) neither an equally nor a differentially weighted two- or three-component additive model, regardless of the method used to predict it, has a significantly higher hit rate than the affective component alone. Four hypotheses are proposed for explaining the latter results and guiding future research