Scientists determine four personality types based on new data

IMAGE: The four newly determined personality types are based on five widely-recognized character traits. The findings challenge existing paradigms in psychology. The new study, led by Luís Amaral of the McCormick School of Engineering, will be published Sept. 17 by the journal Nature Human Behaviour. The findings potentially could be of interest to hiring managers and mental health care providers. "People have tried to classify personality types since Hippocrates' time, but previous scientific literature has found that to be nonsense," said co-author William Revelle, professor of psychology in the Weinberg College of Arts and Sciences.