Flora A. (Office of Program Policy Analysis and Government Accountability, Florida Legislature) Caruthers & Rodney K. (Duquesne University, USA) Hopson 
The Program Evaluation Standards : A Guide for Evaluators and Evaluation Users [PDF ebook] 
A Guide for Evaluators and Evaluation Users

With oversight from the Joint Committee on Standards for Educational Evaluation, Yarbrough, Schulha, Hopson, and Caruthers have revised and illustrated this new edition of the Program Evaluation Standards. These thirty standards support the core attributes of evaluation quality: utility, feasibility, propriety, accuracy, and accountability, and provide guidance to anyone interested in planning, implementing, or using program evaluations. The book is an invaluable resource for practicing evaluators, students, evaluation users, and clients.