Distribution of practice prior to solution of a verbal reasoning problem.

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Abstract
300 college students each received a total of 20-min. of practice under 1 of the following conditions: massed; 60 sec. work, 30 sec. rest; and 60 sec. work, 90 sec. rest. Distr. of practice occurred prior to 1 solution of the problem. In terms of number of subjects solving the problem, the 30-sec. distr. group was inferior to both the massed and the 90-sec. conditions. The massed and 90-sec. groups were not significantly different. Time scores for those subjects solving did not differentiate between groups. Two deductive-type problems used in the preliminary study because of their subjective similarity showed no significant relationship in subject performance in any of the groups. There was a significant positive relationship between length of rest interval and frequency of subjects in a group who offered 1 or more incorrect problem solutions. This held true both for those who solved and those who did not solve the problem.
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