The present study was an attempt to determine the reliability and validity of an adapted vocational indecision scale designed for undergraduates (Osipow, S. H., Carney, C. G., Winer, J. L., Yanico, B. J., & Koschir, M., In Journal of Vocational Behavior, 1976, 9, 237) for use in a graduate student population. Internal consistency, test-retest, interrater reliability, and validity coefficients were calculated. A factor analysis and a multiple regression were also conducted. The findings suggest that the characteristics of the adapted indecision scale for the graduate students sample are similar to the characteristics of the unadapted instrument for the undergraduate sample in the S. H. Osipow, C. G. Carney, and A. Barak (Journal of Vocational Behavior, 1976, 9, 223-243) study. Potential therapeutic and research uses of the adapted indecision scale are also discussed. © 1979.