The 30 standards are divided into four groups corresponding to the attributes of fair programme evaluation - utility; feasibility; propriety; and accuracy. In this new edition original standards have been combined and others added, with new case illustrations featuring applications of the standards to reform efforts in a diverse range of settings including schools, universities, law, medicine, nursing, business and social service agencies. Taken as a set, the Standards provide a working philosophy for evaluation which will lead to useful, feasible, ethical and sound programme evaluation.