Twin and Adoption Studies
Not what you're looking for?
What have twin studies and adoption taught us about the role of inheritance in human intelligence?
Purchase this Solution
Solution Summary
This solution examines what twin studies and adoption taught us about the role of inheritance in human intelligence. Last updated on June 24, 2009.
Solution Preview
Please see response attached (also below).
LAST UPDATED: JUNE 24, 2009
RESPONSE:
6. What have twin studies and adoption taught us about the role of inheritance in human intelligence?
Twin studies are valuable to researchers because identical twins share 100% of their genes and fraternal twins share, on average, 50% of their genes. Both identical and fraternal twins share certain aspects of their environment (e.g. religious practices in the home). This allows researchers to estimate the heritability of certain traits, including human intelligence.
The role of genes and environment (nature vs. nurture) in determining IQ is reviewed in Plomin et al. (2001, 2003). For example, twin studies and adoption studies have taught us the degree to which the roles of inheritance plays in human intelligence. For example, the degree to which genetic variation contributes to observed variation in a trait is measured by a statistic called heritability. Heritability scores range from 0 to 1, and can ...
Purchase this Solution
Free BrainMass Quizzes
Birth 101
Do you know about childbirth? Find out with this quiz.
Parts of the Brain
This quiz will test your knowledge on different areas of the brain.
Labor Comfort Measures
Do you know how to comfort someone in labor?
Nerves and the Nervous System
This quiz will assess your knowledge of the nervous system and how nerves send signals around the body.
Feeding Babies
Do you know the science behind feeding babies? Test your knowledge with this quiz.