This study elaborates the "what works?" question by exploring the effects of variability in program implementation quality on achievement. Particularly, the effects on achievement of computerized assessment of reading were investigated, analyzing data on 51,000 students in Grades 1-12 who read over 3 million books. When minimum implementation…

The results of an evaluation of Vermont's statewide assessment initiative are presented, with information about the implementation of the program, its effects on educational practice, the analytic challenge presented by the portfolio scoring process, the reliability and validity of portfolio scores, and the tensions between assessment and…

A report of research assessing teacher evaluation practices describes how the master teacher concept operates in four school districts. Theory informing the study and findings of a survey of teacher evaluation practices in 32 districts are reviewed; attempts to ensure reliability, validity, and utility are examined; and capabilities and limits of…

Five papers presented at a symposium during the 1991 annual conference of the National Council on Measurement in Education explore the design, development, and implementation of the Texas Master Teacher Examination (TMTE) Program. Educational policymakers have begun to maintain that the professionalization of teaching can be substantially…

The Preschool Version of the High/Scope Program Quality Assessment (PQA) is a ratings instrument for evaluating the quality of early childhood programs and identifying staff training needs. The assessment was developed for use in all center-based preschool and child care settings, not just those using the High/Scope educational approach. This…