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Changes in the self concepts of school-leavers who participated in an Arctic expedition.

Summary. Questionnaires designed to measure some aspects of personality and self concept were administered to the 35 male school-leavers of an Arctic training expedition both prior to departure and on their return. The same procedure was carried out with a control group of equal size. The results showed that those volunteering for the expedition were significantly more extravert than the general population of students and that in those who participated there was a significant reduction in the discrepancy between self description and ideal self description by the end of the expedition.