<P> In Australia, the title organizational psychologist is protected by law, and regulated by the Australian Health Practitioner Regulation Agency (AHPRA). Organizational psychology is one of nine areas of specialist endorsement for psychology practice in Australia . </P> <P> In Europe someone with a specialist EuroPsy Certificate in Work and Organisational Psychology is a fully qualified psychologist and an expert in the work psychology field . Industrial and organizational psychologists reaching the EuroPsy standard are recorded in the Register of European Psychologists and industrial and organizational psychology is one of the three main psychology specializations in Europe . </P> <P> The historical development of I / O psychology was paralleled in the US, the UK, Australia, Germany, the Netherlands, and eastern European countries such as Romania . The roots of I / O psychology trace back nearly to the beginning of psychology as a science, when Wilhelm Wundt founded one of the first psychological laboratories in 1876 in Leipzig, Germany . In the mid 1880s, Wundt trained two psychologists, Hugo Münsterberg and James McKeen Cattell, who had a major influence on the emergence of I / O psychology . </P> <P> Instead of viewing performance differences as human "errors", Cattell was one of the first to recognize the importance of differences among individuals as a way of better understanding work behavior . Walter Dill Scott, who was a contemporary of Cattell, was elected President of the American Psychological Association (APA) in 1919, was arguably the most prominent I / O psychologist of his time . Scott, along with Walter Van Dyke Bingham, worked at the Carnegie Institute of Technology, developing methods for selecting and training sales personnel . </P>

When did the discipline of industrial–organizational psychology emerge