Citation

Eysenck HJ. Eur. J. Pers. 1995; 9(2): 103-108.

Copyright

(Copyright © 1995, John Wiley and Sons)

DOI

10.1002/per.2410090204

PMID

unavailable

Abstract

Van Kampen (1993) has published a paper in which he criticizes the concept of psychoticism and the use of the P scale as a measuring device, and advances measures for his own S scale and its validity. This reply attempts to clarify the notion of 'validity', and to demonstrate that there is a considerable body of experimental evidence to show that P has a high degree of construct validity, whereas the Van Kampen S scale lacks completely any degree of construct validity. Several examples are given of how the experimental evidence legitimates both the P scale, and the theory (nomological network) on which it is based.

Language: en