The Career Thoughts Inventory (CTI) is a theory-based assessment and intervention resource intended to improve the quality of career decisions made by adults, college students, and high school students, while at the same time improving the quality of career services delivered to them. It is a self-administered, objectively scored measure of dysfunctional thinking in career problem solving and decision making and it was developed to integrate the functions of assessment and intervention within a career service delivery context. Its goal is to link the measure and the accompanying workbook in such a way that clients can make more effective use of their and their practitioner's time, while effectively incorporating the assessment concepts into intervention strategies for change. Thus, the CTI is comprised of traditional assessment components plus a learning resource workbook. It is based on a cognitive information processing theoretical approach to career development and career services, and a cognitive therapy theoretical approach to mental health and mental health services. The benefits of using the inventory is that it can be quickly administered; rapidly scored; easily interpreted; integrated into counseling homework; and it is inexpensive to used (Contains 15 references.) (Author/JDM)