Does trait self-control (TSC) predict affective well-being and life satisfaction--positively, negatively, or not? We conducted three studies (Study 1: N = 414, 64% female, Mage = 35.0 years; Study 2: N = 208, 66% female, Mage = 25.24 years; Study 3: N = 234, 61% female, Mage = 34.53 years). The key predictor was TSC, with affective well-being and life satisfaction ratings as key outcomes. Potential explanatory constructs including goal conflict, goal balancing, and emotional distress also were investigated. TSC is positively related to affective well-being and life satisfaction, and managing goal conflict is a key as to why. All studies, moreover, showed that the effect of TSC on life satisfaction is at least partially mediated by affect. Study 1's correlational study established the effect. Study 2's experience sampling approach demonstrated that compared to those low in TSC, those high in TSC experience higher levels of momentary affect even as they experience desire, an effect partially mediated through experiencing lower conflict and emotional distress. Study 3 found evidence for the proposed mechanism--that TSC may boost well-being by helping people avoid frequent conflict and balance vice-virtue conflicts by favoring virtues. Self-control positively contributes to happiness through avoiding and dealing with motivational conflict.

The present research utilized experience sampling data to investigate how guilt and pride experiences in response to self-control failure versus success affect future self-control when encountering the same type of temptation (thematic self-control). Guilt showed signs of a “mixed blessing” such that previous guilt led to an increase in subsequent self-regulatory goal importance and conflict awareness; however, accounting for these beneficial effects, guilt also had a detrimental residual effect on the successful inhibition of recurring temptation. Pride, in contrast, had uniformly positive effects on subsequent self-control in the form of increased goal importance, increased conflict, and increased likelihood to use self-control to resist temptation. These results contrasted in theoretically important ways from an analysis of short-term spillover effects of incidental guilt and pride on thematically unrelated subsequent self-control. Potential mechanisms and implications of these findings are discussed.