>>11257726Show me a meta analysis of what you're talking about.
in return here are some studies that might show you the light:
J.B. Carroll (1993) Human Cognitive Abilities, New York: Cambridge Press University Press
Duncat, et al. "A neural basis for general intelligence.: Science, 289, 2000. pp. 457-460
"Test takers have done a good job of creating reliable IQ tests (Gregory, 2007)
"The region most often involved in various IQ tasks is the prefrontal cortex." (Duncan, et al., 2000)
in Lubinski et, al. (2006) it was described that students who scored high on the SAT had a much better life in 25-35 years than their peers.Most would go on to become: a doctor, engineer, mathematicians etc.
"Adopted children's overall intelligence is more similar to that of their biological parents than to that of their adoptive parents." (Munsinger, 1975)
Alcohol, drugs and viral infections in a pregnant woman can seriously lower her child's overall intelligence." (Jacobson & Jacobson, 2000; Ruff, 1999; Steinhausen & Spohr, 1998)
