The role of educational evaluation is discussed in relation to interdisciplinary courses in social science. How one evaluates student achievement, a course or an instructor can be defined by means of defining behavioral objectives. That is, the expressed outcomes of the particular course can be expressed as the goals to be met by students and on the courses being taken or taught. Some suggestions are given to aid in establishing these behavior goals. It is suggested that the use of these behaviorally defined objectives will develop a more independent learning and thinking student, as well as enhance the value of student achievement, curricular design and instructional skill. (DEP)