Re: complexity

Ralph L Holloway (
Wed, 15 Nov 1995 23:41:57 -0500

On 15 Nov 1995, Gints wrote:

> One good example busts up any correlation. Are tall humans known to be
> more intelligent than smaller humans?

As a matter of fact, there is a correlation of roughly 0.3 between
stature and brain weight in most autopsy samples that have been studied,
and the correlation is somewhat higher in males than in females (don't
know why except it might have to do with higher fat component in females).
More recently, and citations are beyond me right this moment, relatively
higher correlations have been found between MRI estimates of brain volume
and intelligence scores ( of many different types), at about .4 to .6.
These are quite high. There are known positive correlations between
stature and intelligence testing, and there are known correlations
between good nutrition and intelligence testing. Those correlations are
pretty low. Again, the degrees of overlap on these measures are very
exyensive, and stature just isn't going to be an effective predictor for
intelligence in individuals.
Ralp Holloway