The introduction of the trial state assessment program into the design of the 1990 National Assessment of Educational Progress (NAEP) raises questions about differences across states in sampling and administration practices. In addition, questions about the general approach to comparing state data to national data need discussion. Subject areas…

The question of whether the Job Corps's impacts on students' employment and related outcomes differ according to the characteristics of the Job Corps center attended was examined. The study sample consisted of approximately 9,400 program group members and 6,000 control group members who were randomly selected from among the nearly 81,000…