During April, 1986, approximately 60,000 Delaware public school students in grades 1 through 8 and in grade 11 were administered a battery of achievement tests as part of the state-funded Delaware Educational Assessment Program (DEAP). The Comprehensive Tests of Basic Skills (CTBS) in reading, language arts, and mathematics was administered. In addition, science and social studies were tested at grade 11. Results showed that the overall performance by Delaware students tested (regular and special education combined) was above the national average in all content areas at all grade levels. In all grades, Total Mathematics scores were higher than Total Reading scores. In all grades for which Total Language scores were available, Total Language scores were higher than Total Reading scores. In comparisons across grades, students in the primary grades generally obtained higher scores than those in upper grades. These trends across grades and subtests are the same as those reported in the 1984 and 1985 Statewide Test Results Report. (This report includes a breakdown of test scores by school district, as well as important factors that make each district unique. Component objective data are shown in the appendix by content area.) (KSA)