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I. The Relationship to Ability, Grades, Test Performance, and Motivation

Stanislav V. Kasl, PhD; George W. Brooks, MPH; Willard L. Rodgers, PhD

JAMA. 1970;213(7):1158-1164.

Abstract
This study examined the possible involvement of serum uric acid and serum cholesterol concentrations in the achievement behavior and achievement motivation of male high school students and recent graduates. It attempted to replicate and extend the existing body of data which has suggestively linked serum uric acid and achievement. The cholesterol data were explored as a possible contrast to the correlates of uric acid. The major findings in this part were (1) uric acid showed a positive association with grades and with over-achievement (grades adjusted for intelligence quotient); (2) uric acid was positively related to performance on aptitude (speed) tests; (3) a positive association was obtained between uric acid and the "slope" measure of achievement motivation (steepness of gradient of attractiveness ratings of occupations in relation to their difficulty), and a negative association between uric acid and test anxiety.

Author Affiliations
From the Department of Epidemiology and Public Health, Yale University School of Medicine, New Haven, Conn; and the Survey Research Center of the Institute; for Social Research, University of Michigan, Ann Arbor.

Footnotes
Part II of this communication will appear in the August 24 issue of The Journal.

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