Practice Quiz

CLEP Intro Edu Psych

Category - Individual Differences

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Twin and sibling studies have found that twins and siblings often have very similar IQ scores, even when raised in different homes. Which component of intelligence does this describe?
  1. Heritability
  2. Flynn effect
  3. Nutrition
  4. Family experience
Explanation
Answer: A -Heritability can account for about half of an individual’s intelligence. Determining the role of heritability in the intelligence of family members is challenging, as they often live together and are exposed to similar environments. The best way to study genetic influence is to study twins and siblings who were adopted by and raised in separate families. Adoption studies have found a high correlation between the intelligence of twins and siblings.
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