and environmental components of inconsistency and unrepeatability in twins' responses to a neurotidsm questionnaire. Behavior Genetics, 1976, 6, 145-160. (a) Eaves, L., & Eysenck, H. J. Genotype X Age interaction for neuroticism. Behavior Genetics, 1976, 6, 359-362. (b) Eaves, L., & Eysenck, H. J, Genotype-environmental model for psychoticism. Advances in Behaviour Research and Therapy, 1977, 1...

In the interest of brevity, we might limit our reply to Eysenck (1992) to an invitation to the reader to re-read our original article (Costa & McCrae, 1992); most of the points he makes are anticipated and answered there. For example, he discusses the Zuckerman, Kuhlman, Thornquist and Kiers (1991) article and comments that their five factors do not match ours very well. We acknowledge this, an...

The Eysenckian PEN System of personality (Eysenck 1991; Eysenck and Eysenck 1985), comprising the superfactors Psychotidsm (P), Extraversion (E), and Neuroticism (N), is used äs a means to locate different humorrelated traits. A sample of 159 German adults answered a sample of temperamental traits relating to the PEN System äs well äs five humorrelated questionnaires. The temperament inventorie...

Two groups (n = 86) of university athletes (contact, no contact) and two matched groups (n = 86) of non-athletes completed the Eysenck Personality Inventory (Eysenck & Eysenck, 1968). Extraversion did not vary significantly between athletes and non-athletes or between contact and no contact athletes, but it was higher for athletes compared to American college norms. For neuroticism, athletes sc...

In the middle of the 20th century, Hans Eysenck reviewed studies of psychotherapy, which consisted primarily of psychoanalytic, psychodynamic, and eclectic treatments, and concluded that psychotherapy (as opposed to behavior therapy) was not effective and was possibly harmful. In the inaugural article in Psychotherapy, Hans Strupp challenged Eysenck's conclusions and discussed how psychotherapy...