Self-set goals, selected by students for themselves, have known motivational benefits leading to increased autonomy and intrinsic motivation. In spite of the motivational benefits, students often fail to accomplish self-set goals because they lack the social motivator ascribed to assigned goals. The purpose of this research was to investigate methods of increasing students' commitments to self-set goals using implementation intentions: plans for when, where, and how to work toward a goal. The results of two studies revealed that implementation intentions increased students' performance on self-set goals relative to assigned goals through enhanced goal commitment and effort. Our findings suggest that the positive effects of self-set goals are greater when they are coupled with implementation intentions.