nothing in your links prove your case francois. as a matter of fact one of your links states "responsibility must be applied when detirmining the results" is it still your assertion that bigger brained people are smarter? explain midgets and their IQ with your theory. edit The fact that midgets, with small head-size on a par with that of normal 2 to 3 year old children, show no differences from the general population in IQ indicates that large brain size per se, though correlated about +.40 with IQ in the general population, is neither necessary nor sufficient for low, average, or high IQ. http://www.cogsci.ecs.soton.ac.uk/p...syc.00.11.021.intelligence-g-factor.33.jensen i reiterate brain size in and of itself is not a reliable indicator of intelligence.