The 1950s also saw psychology come of age as a profession. As you know, psychology is not all pure science. It has a highly practical side.
Many psychologists provide a variety of professional services to the public.
Their work falls within the domain of applied psychology , the branch of psychology concerned with everyday, practical problems . This branch of psychology, which is so prominent today, was actually slow to develop. During the war, the military services experimented with intelligence testing as an aid in assigning recruits to jobs in accordance with their abilities. The war thus brought many psychologists into the applied arena for the first time and established mental testing as a routine professional activity conducted by psychologists . After World War 1, psychology continued to grow as a profession, but only very slowly.