Abstract

Sociobiology has always had a strong relationship with classical psychometrics, and with intelligence testing in particular. The major ideological impact of Eugenics prior to 1940 led many psychometricians to adopt a sociobiological perspective, but when this turned out, in the 1960's, to be controversial many of the procedures of classical psychometrics were abandoned. Their place was taken by functional psychometrics, based on criterion reference testing, where the content of test items was related directly to very specific skills which may be required in the work place or other setting, and the use of intervening psychological traits such as intelligence was eliminated. It is demonstrated here that much of the theory of traits can be derived directly from functional psychometrics, without the need to make any sociobiological presuppositions.