Owston (2008), in the context of program evaluation, presented six common evaluation purposes including (1) attainment of the effort’s goals and objectives, (2) improvement, (3) accreditation, (4) development of theory about intervention, (5) meeting information needs of diverse audiences, and (6) overall impact. As previously discussed, the evaluator needs to identify the stakeholders and find out what their expectations are for the evaluation and the kind of information they seek about the effort. The evaluator then decides upon the actual design of the evaluation study.