Four hundred fifty college students were given three measures of creativity: (a) complexity-simplicity preference, (b) Personal Opinion Survey, and (c) an unusual uses test. The intercorrelation of the creativity measures ranged .45-.83 (p's is less than .001), and a striking birth-order effect was found: later-born males were significantly less creative than firstborn males on all measures. Reprints from Russell Eisenman, Department of Psychology, Temple University, Philadelphia, Pennsylvania 19122. (Author)