This article provides a critique of the conceptual framework on which
Herrnstein and Murray's book entitled The Bell Curve: Intelligence and
Class Structure in American Life is based. The conclusions that the a
uthors draw from the data on intelligence presented in the text are gr
ounded in the classical tradition. While their analysis of the data an
d interpretation of it may be consistent with most aspects of the clas
sical perspective, the conclusions and policy recommendations are base
d on assumptions that are not grounded in the data. Some of the limita
tions to the scientific integrity of their analysis and the philosophi
cal assumptions guiding their analysis is discussed.