Describes (1) the rapid growth in the number of states requiring teacher competency testing prior to certification and (2) variations in teacher testing for other purposes. Discusses the perceived need for teacher testing and outlines some consequences of the testing movement. Widespread testing of school administrators may be next. (IW)

Based on telephone interviews with educational officials from all 50 states and the District of Columbia, an overview of the use and impact of standardized tests in the United States during the 1986-87 school year was developed. In addition to interviewing officials from all state departments of education, officials from 56 sample school districts…