[Relationship between Eysencks personality types and intellectual performance]

This study tests Eysenck's psychophysiological hypotheses concerning the relationship between intellectual performance and personality type. The data originated from two partial samples with N = 314. The personality types were distinguished with the ENNR-Questionnaire. The intellectual performance was tested using items which are based on Jäger's factor analytic studies. 23 differentially complex items stemed from the main intelligence factors, and separate measures for speed and quality were used to test the hypotheses. The results of all analyses of variancy falsify Eysenck's hypotheses. The "neurotic introverts" showed the worst results in both quality and speed by most of the items, independent of complexity and intelligence factor (chi-square-test of positional frequency). The "stable" and "neurotic extraverts" showed the best results.