Studying instructional television : what should be evaluated

Section II describes the first step of the evaluator, exploring the context, goals, and assumptions of a project. Section III reviews a scheme for evaluating the achievement of a project"s objectives and details a range of intended and unintended outcomes that have concerned or should concern evaluators. Section IV takes up the difficult evaluative issue of explaining a project"s success or failure. Recognizing that a very large array of research topics was described in previous sections. Section V describes some criteria to help evaluators select among them. Finally, a bibliography on evaluation theory and methodology is presented in the appendix.