This reference guide is designed to give educators and other interested persons a better understanding of the information contained in the score reports from the Washington Assessment of Student Learning, the key measuring stick of the state's school improvement strategy. To do this, the guide is organized around the four basic form types used in reporting test results: (1) the individual student (parent version) report; (2) student performance and achievement profiles (by class and school); (3) summary of student performance (by school, district, and state); and (4) summary of achievement profile (by school, district, and state). Important components are explained in keys accompanying each report type. (SLD)