when did the discipline of industrial–organizational psychology emerge
Industrial and organizational psychology The historical development of I/O psychology was paralleled in the US, the UK,[8] Australia, Germany, the Netherlands,[9] and eastern European countries such as Romania.[10] 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.[11]
The Principles of Psychology The Principles of Psychology is an 1890 book about psychology by William James, an American philosopher and psychologist who trained to be a physician before going into psychology. There are four methods from James' book: stream of consciousness (James' most famous psychological metaphor); emotion (later known as the James–Lange theory); habit (human habits are constantly formed to achieve certain results); and will (through James' personal experiences in life).