Presented in table and graph form are the laboratory test performances of 1965-1976 gifted high school graduates. In a review of the test used, it is reported that test performances of 128 1961 graduates were used to develop the test battery which included the Wisconsin Inventory for Talented Students (WITS)-Verbal, the WITS-Quantitative, and the Terman Concept Mastery Test. Tables and graphs break down data into graduating year, grade levels, sex, and locality of students. The trends and findings are discussed for each test individually, and the implications of such findings as the systematic drop of WITS-Verbal mean scores are listed. In addition, tables summarize the old and new norms, percentile values, and raw scores for each test at the 9th and 11th grade levels. Also provided is a glossary of test terms. (SB)