Robert F Mager

        Robert  Frank Mager (born June 10, 1923) is an American psychologist and author. Concerned with understanding and improving human performance, he is known for developing a framework for preparing learning objectives, and criterion referenced instruction (CRI), as well as addressing areas of goal orientation, student evaluation, student motivation, classroom environment, educational change, performance technology, and instructional design.
                    
               Robert F. Mager is the author of over 10 books which have been translated into at least 17 languages and sold over four million copies worldwide. in the past five decades. His Preparing Instructional Objectives is the best-selling book ever written on the subject, and is part of the Museum of Education’s books of the century list.His main publications are characterized by an easy-to-read writing style and humor, which is much unlike other academic writings in the field.