Longitudinal studies have found that "short-lookers" in infancy tend to have higher IQ scores later in development than "long-lookers" do.
At 4 or 5 months of age, newborn children with short looking circumstances ought to be further developed than are babies with long looking circumstances in light of the fact that the short lookers have made the change to all encompassing. The individuals who grow all the more quickly as newborn children will tend to proceed with that fast advancement and turn into the kids with higher IQs.