A sample of slightly over 1500 students was drawn from even-numbered grades in public schools of the U.S. Virgin Islands, and was given the 1973 edition of the Stanford Achievement Test (in grades 2,4,6, & 8) and the Test of Academic Skills (grades 10 and 12) to assess student academic achievement in the basic skill areas of mathematics, reading, and English language. This report describes phase I of the data analysis, which involved the determination of levels of content validity and reliability of the scores obtained from these Virgin Islands students on these tests which were originally standardized on continental United States populations. The results indicate that the tests are content valid for use in Virgin Islands public schools at these grade levels and that the scores obtained are at least as reliable as those obtained using continental U.S. students during the test standardization procedures. (Author/PN)