IQ genetics or environment? Both come into play

IQ genetics or environment? Let’s provide a bit of background to the question. Many studies have been published which have investigated the issue and it is undeniable that there is a positive correlation between the IQ of offspring with that of their birth parents, especially the birth mother. A particularly intereting series of studies involved …
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IQ differences between siblings

Researchers at the University of Illinois have published the results of the largest-ever “within family” evaluation of IQ and personality difference among siblings. The study helps shed light on IQ differences between siblings. This very large sample study (backed by the National Institute on Aging which is┬ápart of the National Institute of Health) looked at …
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