This classic introduction to educational and psychological measurement provides a technically rigorous treatment of the core issues in measurement in an easy-to-read and easy-to comprehend way. In preparing readers to become independent users of test information, it describes problems in measurement, explains how these problems are approached and solved, surveys a broad range of sources, and provides guidance in how to find, evaluate, and integrate information about specific tests. This book focuses on the basic issues in measurement. Offers an exceptionally readable presentation that does not require extensive math background. Makes frequent cross references to related topics found in other chapters. Increases emphasis on the assessments used by counselor/school psychologist.