The specialty of industrial-organizational psychology (also called I/O psychology) is characterized by the scientific study of human behavior in organizations and the workplace. The specialty focuses on deriving principles of individual, group and organizational behavior and applying this knowledge to the solution of problems at work (American Psychology Association, 2008). Specialized knowledge and practice in the science of behavior in the workplace requires in-depth knowledge of organizational development, attitudes, career development, decision theory, human performance and human factors, consumer behavior, small group theory and process, criterion theory and development, job and task analysis and individual assessment. In addition, the specialty of industrial-organizational psychology requires knowledge of ethical considerations as well as statutory, administrative, and case law and executive orders as related to activities in the workplace (American Psychology Association, 2008). The specialty of Industrial Organizational Psychology addresses issues of recruitment, selection and placement, training and development, performance measurement, workplace motivation and reward systems, quality of work life, structure of work and human factors, organizational development and consumer behavior. I/O Psychologists are scientist-practitioners who have expertise in the design, execution and interpretation of research in psychology and who apply their findings to help address human and organizational challenges in the context of organized work. The distinct focus of I/O psychology is on human behavior in work settings. Therefore, the populations affected by the practice of I/O psychology include individuals in and applicants to business, industry, labor, public (including non-profit), academic, community and health organizations (American Psychology Association, 2008).