Two studies were conducted to examine relationships between intransitivity, defined by the total circular triad (TCT) score on the Minnesota Importance Questionnaire (MIQ), and vocational needs and abilities. Data were collected on 373 rehabilitation clients for Study 1 and 215 vocational assessment clients for Study 2. In Study 1, TCT scores were correlated with General Aptitude Test Battery (GATB) scores, and a multiple regression analysis was performed with GATB and MIQ scores as independent variables and TCT as the dependent variable. The results showed that aptitude scores, especially General and Verbal scores, were negatively related to TCT scores, while needs for Social Status and Authority were positively related to TCT scores. In Study 2, Goodstein's model of indecision and indecisiveness in vocational decision-making was investigated by comparing number of important needs for high TCT subjects who were above, versus below, the median in work experience, and by a multiple regression analysis with number of important needs as the dependent variable and age, education, work experience, and TCT scores as independent variables. The data indicated that undecided and indecisive subjects cannot be separated on the MIQ and that the number of needs declared important decreased with education but increased with amount of work experience and TCT score. (Author)