This monograph contains a description of continued research efforts in measuring and evaluating preservice teacher competencies and effectiveness in the competency-based teacher education (CBTE) program at the University of Toledo (Ohio). Chapter 1 introduces the assessment rationale, and chapter 2 provides an overview of research literature on teacher effectiveness. Chapter 3 focuses on the identification of 49 teaching competencies and the methodology of classroom or teacher observation used at the University of Toledo. This chapter also includes a discussion of high and low inference observation and a description of the two measurement instruments: Classroom Observations Keyed for Effectiveness Research (COKER) and Teacher Performance Assessment Instruments (TPAI). Chapters 4 and 5 provide the results of two different types of data analysis--profile analysis and multivariate analysis of TPAI and COKER data. The final chapter presents conclusions, makes recommendations for further action, and outlines the uses of the data. (JD)