Evaluation can be broadly defined as an organized review process for decision making involving the consideration of selected phenomena based on predetermined criteria. School health educators can use evaluation techniques to accomplish several goals. Evaluation and measurement of students' accomplishments assist in planning for student guidance. Selecting students for ability grouping or individualized instruction depends on evaluating the most effective learning method for each student. Other methods in which evaluation procedures can assist health educators are in maintaining individual and group standards through testing, motivating students, determining cognitive weaknesses, and in choosing the most effective teaching methods and facilities. Several evaluation techniques exist that can be used for effective evaluation, such as student feedback, comparison of teaching methods, unit review by peers or administrators, and reference materials. (FG)