For the last 140 years, scholars have been preoccupied with identifying the exact factors that influence one’s IQ. The numerous studies on the subject have led most scientists nowadays to the belief that one’s IQ is determined by a variety of both genetic and environmental factors, although there is contention about the exact weight of each.
The majority of studies on intelligence have shown that environmental factors account for about 25% of the differences in people’s IQ scores. The factors that have been of greatest interest to scholars include prenatal development, nutrition, birth order, home and family environment, and the effects of schooling.
Prenatal development
Scientists have d View the rest of this article
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