| Abstract: | Little attention has been paid to biological or physiological correlates of mental ability in the development of theories or tests of intelligence. A number of such biological correlates exist, however; some showing a pronounced relationship with performance on standard intelligence tests. Given the magnitude of the correlations that exist between behavioral intelligence and such measures as averaged evoked potentials, nerve conduction velocity, and cerebral glucose metabolic rate, it is proposed that an appropriately weighted combination of these and other physiological processes could provide a reliable, culture-fair estimate of intelligence that could be administered in the same manner to persons of almost any age or level of ability. Biological approaches to the measurement of intelligence may not replace traditional assessments, but the information that they can provide deserves greater attention than typically has been the case. |
