Spirituality and religiosity have been found to be positive predictors of subjective well-being, even if results are not altogether consistent across studies. This mixed evidence is probably due to the inadequate operationalization of the constructs as well as the neglect of the moderation effect that the individuals' religious status can have on the relation between spirituality/religiosity and subjective well-being. The current study aimed to investigate the relationship of spirituality and religiosity with subjective well-being (operationalized as both life satisfaction and balance between positive and negative affect) and to test whether differences exist according to individuals' religious status (religious, non-religious, and uncertain). Data were collected from 267 Italian adults aged 18-77 (M = 36.68; SD = 15.13), mainly women (59.9%). In order to test the role of spirituality (operationalized as Purpose, Innerness, Interconnection, and Transcendence) and religiosity (operationalized as three dimensions of the religious identity: Commitment, In-depth Exploration, and Reconsideration of Commitment) in subjective well-being, two path analysis models were run, one for each predictor. To test the invariance of the two models across the individuals' religious status, two multi-group models were run. The models concerning spirituality were tested on the entire sample, finding that spirituality had a positive impact on subjective well-being (except for the dimension of Interconnection) and that this relation is unaffected by the individual's religious status. The models concerning religiosity were instead tested only on religious and uncertain, finding that the relationship between religiosity and subjective well-being changes across religious status. In particular, the main difference we found was that religious identity commitment positively predicted satisfaction with life among religious, but not among uncertain individuals. An interpretation of the results and their implications are discussed.
Keywords: life satisfaction; negative affect; positive affect; religiosity; religious identity; religious status; spirituality; subjective well-being.