The growing number of career choice process instruments may have outstripped counselors' understanding of these increasingly sophisticated and complex measures. The differences among measures bearing similar titles is often confusing and has led some counselors to misapply or misinterpret them. The most important developments/advances in the Career Decison Scale (CDS), the Career Development Inventory (CDI) and the Career Maturity Inventory (CMI) were described in the book "Career Decision Making" (1988). There have been even more recent developments in these scales. The most important development relative to the use of the CDS concerns the differential diagnosis of undecided students. Each review of the CDS and many investigations of it have offered explicit suggestions for research to further develop the Indecision Scale. Developments for the CMI concern its increasing use in teaching decisional attitudes and competencies. At this time the most pressing need for the CIM-Attitude Scale is a literature review. The most important development relative to the use of the CDI concerns developmental counseling. The CDI needs criterion-related research to firmly establish its validity and nomological network. (ABL)