Experimental measures of cognitive privilege/deprivation and some of their correlates

An operational definition of intellectual privilege and deprivation was used to develop measures of that construct in each sex from information furnished by 10th-grade students in Project Talent about their family and health background. Information such as reports of high school grades that directly reflected the ability of the students was excluded. The correlation between the experimental measure and the Talent intelligence composite is about .65 in contrast to the usual value of about .40 for a traditional measure of socioeconomic status. Sex differences in the items keyed are minimal. Using a similar definition, measures were also developed for Vernon's mechanical-spatial major group factor (1960), but the level of validity achieved is lower. The measures of privilege/deprivation developed for the two criteria show some degree of differential validity, but there is more generality in the two kinds of privilege than in tested abilities. The measures of intellectual privilege are almost congeneric measures of general intelligence, but there are significant departures from parallel profiles of relationships with other cognitive tests in Talent. The measures of intellectual privilege for both sexes add to the accuracy of prediction obtained from the intelligence criterion of scores on verbal academic and aesthetic information, but add nothing in predicting scores on measures of spatial visualization and rote memory. The possibility of constructing a test of general intelligence using item types that would minimize the correlation with privilige/deprivation is discussed.