This study is concerned with the desirability and feasibility of a well-planned industrial testing program which will improve a company's over-all efficiency by improving the skill, knowledge, and attitude of the employees. A careful study has been made of the material already published and available on the subject of testing programs, consisting of a historical background of training, consideration of the use of testing as a personnel device, and a detailed discussion of the various types of tests and testing programs. Case studies have been made of several selected industries and personal interviews made with management and personnel officials to determine their attitudes toward testing. An evaluation has been made as to the justification of testing programs, pointing out some of their weaknesses and suggesting possible solutions. / Master of Science