> - Pre-K programs > - Kindergarten enrollment > Every single factor listed above is demonstrably correlated with lifetime intelligence I thought that pre-k

> - Pre-K programs > - Kindergarten enrollment > Every single factor listed above is demonstrably correlated with lifetime intelligence I thought that pre-k and kindergarten programs (along with essentially all education) were not correlated with IQ when measured later in life? Part of how most "shared environment" influences decrease as people age. (The two remaining factors would be "nonshared environment" and "genetics", each at ~50%) There is a correlation between "years spent in school" and IQ, but that's typically thought to go the other way. (Higher IQ causing more years in college - grad school, PHD programs, etc) EDIT: I should add that there are still correlations that go the other way - more intelligent, wealthier parents are more likely to enroll their kids in pre-k programs and/or kindergarten, and are also more likely to have more intelligent, wealthier children. But intervention tests - where entire regions are enrolled in preschool, for instance - don't show the improvement you'd expect.