Researchers have raised a number of questions about whether student achievement data can be used fairly or accurately for purposes of teacher evaluation. Others have noted that achievement data alone cannot provide teachers with the information they need to improve their practice. Recognizing these limitations, the federal government and many…

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…