We examined the Motivational Trait Questionnaire (MTQ) in a goal-setting situation to determine the capability of motivational traits to predict task performance and core variables associated with goal-setting: self-efficacy, personal goals, and goal commitment. The MTQ measures individual differences in motivation to perform tasks utilizing 6 underlying scales that reflect the 3 traits of personal mastery, competitive excellence, and motivation related to anxiety. Generally consistent with hypotheses, we found that higher levels of the desire to learn, mastery, other-referenced goals, competitiveness, and emotionality scales were predictive of personal goals, self-efficacy, and practice, or postgoal performance of an idea-generation task. Our findings led us to believe that the MTQ is a reliable and useful way of measuring stable motivational constructs, particularly in a goal-setting situation.