On the contrary, the importance of the Minnesota study lies mainly in the fact that it constitutes a particularly thorough confirmation of the results of previous adoption studies. Fourth, and most important, the story creates the false impression that the results of the Minnesota study make some general point about the relative contributions of genes and experience to the development of intelligence and personality in individuals. They do not, and neither do the results of any other adoption study. True, Bouchard and his colleagues estimated the heritability of IQ to be .70, but they did not conclude that IQ is 70% genetic.