11.8 Heredity vs environment
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Loehlin, J. C. (1997). Dysgenesis and IQ: What evidence is relevant? American Psychologist, 52(11), 1236-1239.
Mingroni, M. A. (2007). Resolving the IQ paradox: Heterosis as a cause of the Flynn effect and other trends. Psychological Review, 114(3), 806- 829.
Rushton, J. P. & Jensen, A. R. (in press).  The rise and fall of the Flynn Effect as a reason to expect a narrowing of the Black–White IQ gap? Intelligence.
Russell, E. (2007).  Commentary: The Flynn effect revisited. Applied Neuropsychology, 14(4), 262- 266
Sundet, J. M., Eriksen, W., Borren, I. & Tambs, K. (2010).  The Flynn effect in sibships: Investigating the role of age differences between siblings.  Intelligence, 38, 38–44.