In a further experimental test of a three-phase code transformation task, 84 Ss solved 6 blocks of 3 problems, and later spent 6 hr. in responding to paper-and-pencil tests of intelligence and certain personality characteristics. A factor analysis of 75 measures led to the identification of 8 factors, 5 of which represent 3P-COTRAN performances, 1 verbal intelligence, and 2 personality characteristics. Analyses based on 9 selected measures indicated differential practice effects, with the problem-solving third phase of the task being more slowly learned. Reliability of the measures and correlates of the task were computed and discussed.
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