Subjective and Objective Intelligence Factors

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Abstract
31 Ss participated in a laboratory experiment involving estimation of similarity between items sampled from 10 conventional tests of intellectual performance. Estimated similarity was found to be a simple function of intertest correlation as determined from 2 groups of 304 and 128 Ss respectively. The similarity matrix was treated as in multidimensional psychophysics, test items being regarded as stimuli. 5 ‘subjective’ factors were found, completely corresponding to the ‘objective’ performance factors extracted from analyses of the correlation data. The investigation is one in a series of studies integrating traditionally widely different approaches to psychological problems.

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