This report describes the results of the October, 1987, state assessment of basic skills of all Washington public school students in grades 4, 8, and 10. More than 152,000 students were tested using the Metropolitan Achievement Tests, Sixth Edition. The first section of the report describes the general state level results for the involved grades. The second section describes the achievement of selected subpopulations of students. The third section reports results for school buildings based on common school and student characteristics. Subject areas for which basic skills are tested include reading, spelling, language skills, mathematics, and vocabulary. A "box and whisker" plot is used to graphically display the performance of Washington students. Seven data tables and 36 graphs are included. (TJH)