Testing plays an important role in guidance programs by providing objective information about students. This document outlines the administrator, teacher, and counselor's roles in establishing an effective testing program. It discusses why tests are useful, principles for selecting tests, proper administration, and interpreting and using results. An example basic testing program is provided, administering various types of tests (achievement, intelligence, interests, etc.) at different grades to track student progress. Criteria for evaluating a program include using a variety of tests, regular intervals, and relating scores to other information about students.