On the meaning and measurement of goal commitment.

Recent research by Tubbs and Dahl (1991) and Tubbs (1993) has proposed that discrepancy measures of goal commitment are superior to self-report measures. We explore the theoretical, practical, and empirical problems with discrepancy measures of goal commitment. We reanalyzed some of the relationships discussed by these authors using their data and demonstrate that the failure to control for ability leads to incorrect conclusions regarding the relative usefulness of discrepancy versus self-report measures. In addition, we conducted a separate study to further compare the usefulness of these different measures. Finally, we discuss the meaning of goal commitment and the role of goals in the motivational process