About the Author
Hans J. Eysenck (1916-1997) was professor of psychology at the University of London and the director of its psychological department at the Institute of Psychiatry. He was best known for his experimental research in the field of personality. Among his many books are Rebel with a Cause, Dimensions of Personality, The Dynamics of Anxiety and Hysteria, Intelligence, and Decline and Fall of the Freudian Empire.
Sybil B. G. Eysenck, wife of the late author Hans Eysenck, is co-director of Personality Investigations, Publications and Services (PIPS), an organization devoted to the promotion of the writings and research of Hans J. Eysenck. She is the co-author, with Hans Eysenck, of Psychoticism as a Dimension of Personality and Personality Structure and Measurement and the co-editor, with Donald Saklofske, of Individual Differences in Children and Adolescents.