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Abstract

Individual differences in circadian activity rhythms were assessed and correlated with a number of measures of task orientation and time concern. Those who tend to be morning active completed the questionnaires more quickly than did others, expressed negative attitudes about wasting time, and scored higher on measures of achievement tendency and task leadership. Differences between college roommates in the tendency to be morning active were found to be related to negative evaluations of the roommate relationship. The results of this study suggest that the causes and effects of synchronized personal and social circadian rhythms warrant continued exploration.