The Comprehensive Tests of Basic Skills (CTBS) battery is administered in New Mexico school districts, as part of a state mandated assessment program, to students in grades 3, 5, and 8 to measure achievement in basic skills (reading, language, and mathematics). Various types of test data are presented for use in modifying the basic instructional program in the Albuquerque Public Schools (APS). The 1986 test results for individual APS schools and average percentile ranks across the district are contained in graphs, figures, and tables. Test scores for each grade level of APS students are better than those in the national norming population for almost every content area subtest. Between 1985 and 1986, third graders' scores improved in nine content area subtests and showed a two percentile point decline in one subtest; fifth graders' scores increased on all but one subtest; and eighth graders' performance increased in language mechanics, language expression, spelling, and reference skills. Average percentile scores compare the performance of APS students to the national norm group; the range of average performance is from the 40th to the 60th percentiles. School by school data show the percentage of students in the below average, average, and above-average ranges in the CTBS major content areas. Student attendance and mobility rates for each school are included since these factors may impact group performance. (TJH)