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Marathons Versus Spaced Groups

Skin Conductance and the Effects of Time Distribution on Encounter Group Learning

State of Hawaii, Mental Health Division

A total of 41 student volunteers were randomly assigned to five groups: two twice-weekly groups, which met for 3 hours for eight meetings; two marathons, which met continuously for 24 hours; and a nontreatment control group. During the group sessions, group partici pants'skin conductances, a measure of their arousal levels, were recorded. The treatment groups had significant positive change on 14 of 15 measured personality variables between the pretest and the posttest, and positive change on all dependent measures between the pretest and a two-month follow-up. The control group also changed significantly on four de pendent measures. On the posttest, members of the twice-weekly groups scored significantly higher than members of the marathon on three dependent measures. In follow-up, members of the twice-weekly groups on the average were significantly more aroused, as measured by skin conductance, than members of the marathons. No significant relationship was found between group members'gain scores on the 15 dependent measures and their skin conduc tance scores.

Small Group Research, Vol. 19, No. 4, 516-527 (1988)
DOI: 10.1177/104649648801900407


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