ABSTRACT
Common observation, theory, and past research all point to important relationships between cognitive efficiency and the extent of optimal functioning in the personality as a whole. The desirability of securing information about the intellectual functioning of the subjects taking the personality battery was obvious from the outset. This chapter describes yielded information that was largely independent of that afforded by the measures of linguistic ability, quantitative ability, closure flexibility, and scrambled sentences skill. Many cognitive performance measures have been regarded from time to time as useful indices of personality characteristics, but almost invariably they have proved to correlate more highly with other abilities than they do with independent measures of the personality traits which they are alleged to tap. Substantial correlations are to be expected among most of the present cognitive performance measures. The form level of inkblot responses also proved to be very independent of other cognitive performance measures and of the rest of the battery as a whole.
