This study investigated the specificity of indecisiveness compared to trait anxiety. In addition, the predictive validity of indecisiveness for postdecisional problems with regard to choosing a major was examined. A sample of 539 adolescents participated at the beginning of Grade 12 and was followed until the first year in higher education. Factor analyses showed evidence for a differentiation between indecisiveness and trait anxiety. In addition, indecisiveness at the beginning of Grade 12 predicted less commitment to the choice of a major in higher education, which, in turn, predicted less choice stability. The effect of indecisiveness on these postdecisional problems remained significant after controlling for trait anxiety, providing further evidence for the specificity of indecisiveness. Copyright © 2010 John Wiley & Sons, Ltd.