We present the PreferenSort, a career counseling instrument that derives counselees' vocational interests from their preferences among occupational titles. The PreferenSort allows for a holistic decision process, while taking into account the full complexity of occupations and encouraging deliberation about one's preferences and acceptable trade-offs. We describe three validation tests: (a) comparing the vocational interests derived by the PreferenSort to those accumulated using Holland's Self-Directed Search (construct validity); (b) exploring the relations between the participants' derived interests and their field of study (concurrent validity); and (c) the degree of improvement in the prediction of the participants' field of study in the derived over the accumulated vocational interests (incremental validity). As hypothesized, by allowing for a holistic decision process, the PreferenSort explains the vocational interests of intuitive individuals better. These findings provide evidence that the PreferenSort is important as a supplementary counseling tool for individuals with an intuitive decision style--people who currently lack self-help counseling instruments. (Contains 4 notes and 2 tables.)