The purpose of this handbook is to acquaint principals and teachers with the California Achievement Tests, mandated by the Maryland State Department of Education. Reports of the test results are also discussed. The first chapter describes the test and provides examples of question formats. A table of the objectives measured is also included. The second chapter presents reports that are distributed to the schools, and an explanation of the data on the reports with suggestions for their use. Also included are the School Frequency Distributions, Mean Score Report, Percent Correct by Objective, and the Individual Test Report. Commonly used technical testing terms are defined in the final chapter. (Author/GK)