Scores earned on the Navy's enlisted classification tests determine, in large part, the type of job specialty training a recruit will receive. About 50% of recruits qualify for academic training in Basic Class "A" level schools. How well the classification tests predict performance in these schools is important from both a cost and a manpower utilization standpoint. Results were summarized from a study involving students enrolled between 1964 and 1966 in 87 Class "A" level schools. Relationships between selection scores and final school marks are reported graphically for each school along with validity coefficients and information on academic attrition. About 11% of all students failed to complete courses for academic reasons. Attrition rates exceeding 20% were noted in 12 schools. In general, the classification tests were effective for nearly all 87 schools. For about half of them, prediction was very good. (author/ly)