The evaluation instruments used in the Tennessee Career Ladder program are described, and their evolution over the first three years of program implementation is traced. The instruments are designed to measure teacher performance and to determine outstanding teachers. They include: the Career Ladder Test of Professional Skills (a multiple-choice test), a classroom observation form, a candidate interview, a candidate portfolio and professional development and leadership summary, dialogues, principal interviews and questionnaires, student and peer questionnaires, and an evaluation consensus judgment. Effect sizes separating general education candidates who achieved Level I, II, and III status during 1985-86 for the 70 scores used in the Career Ladder evaluations are provided. In general, separation of the levels was excellent. Fifty of the scores (71%) separated Levels I and II by half a standard deviation or more, and 21 (30%) separated them by 0.8 standard deviations or more. Levels II and III were separated by at least half a standard deviation by 42 scores (60%) and by 0.8 standard deviation or more by 19 scores (27%). Appendix A contains data sources for the Career Ladder competencies and indicators. Appendix B presents analyses of scores, their differentiation among ladder levels, and the effect sizes of differentiation of levels. (SLD)