Abstract
We investigated perceptions of spousal social control and the partners' behavior, affect, and relationship satisfaction at the start of a weight loss attempt. Gender and body mass index (BMI) were explored as moderators. In order to examine the short-term effects of social control, participants completed daily assessments reporting spouses' influence and their own behavior and well-being. Instrumental and reinforcing social control were associated with better health behavior, well-being, and relationship satisfaction, but showed no impact over time. Monitoring control was inconsistently associated with health behavior and well-being. BMI moderated some of the relations between social control strategies, health behavior, and well-being. Findings suggest spouses can contribute to partners' weight loss attempts with influence strategies, but considering weight status may determine which strategies are the most beneficial.