This experiment tested the hypothesis that there would be a significant increase in powerlessness scores over a 10 year period. The sample was drawn from a population of college students originally tested in 1964. At the 10 year follow-up, all Ss had graduated from college and were either professionally employed (mostly as teachers) or engaged in child-rearing/home activities. The average age of the 1974 sample was 29 years and consisted of 70 females and 30 males. The test instrument was the adult version of Rotter's Internal-External (I-E) Locus of Control Scale which consists of 23 forced-choice items. There were no significant differences on total I-E scores over the 10 year period. However, with use of the Mirels two-factor scoring system, significant increases in social-political control were found. No significant differences in personal control were found. It was concluded that care should be taken in utilizing cross-sectional findings and that utilizing multidimensional scores suggests different results for previously published reports.