Effects of Trait Self‐Control on Response Conflict About Healthy and Unhealthy Food

Abstract Self‐control leads to positive life outcomes, but it is poorly understood. While previous research has focused on self‐control failure, self‐control success remains unexplored. The current studies aim to shed more light on the mechanisms of self‐control by focusing on the resolution of response conflict as a key component in self‐control success. Trait self‐control was measured, and participants reported on the magnitude of response conflict they experienced about healthy and unhealthy foods in Study 1 (N = 146; Mage = 33.03; 59 females, 83 males, 4 unknown). The response conflict process was assessed in Study 2 (N = 118; Mage = 21.45; 68 females, 41 males, 9 unknown). Outcomes showed that self‐reported evaluative response conflict about food items was smaller for people high in trait self‐control. Study 2 revealed that higher trait self‐control predicted faster resolution of self‐control conflict, and an earlier peak of the response conflict. Taken together, these results provide insight into what makes people with high trait self‐control successful, namely, how they handle response conflict. Implications for self‐control theories and future directions are discussed.