The 1983 annual report of Washington's statewide test of fourth grade basic skills achievement is presented in this document. Both state level and district-by-district results are reviewed. The first section of this report presents the overall results for the 48,000 fourth grade students who were administered the basic battery of the California Achievement Test (CAT) in October 1983. The results for selected special student subpopulations are also reported. The second section provides summaries of the test findings for each district in Washington and categorizes the results by number of students tested. Student achievement analysis includes: (1) subtest results (reading, vocabulary, reading comprehension); (2) content domain items (literal comprehension, interpretive comprehension); and (3) category objective results (recall of facts, inferred meaning). The state testing program measures achievement in reading, spelling, language, and mathematics and does not include other discipline areas nor attitudinal factors. Limitations of this testing program are presented as well as summary statements on performance analysis in each content area. (ML)