10 Questions
What is the purpose of including nontwin siblings in twin studies?
To test whether fraternal twins are more similar than nontwin siblings
Which combination design brings the adoption design together with the family and twin designs?
Twin-adoption design
What makes the adoption design comparing genetic and environmental relatives more powerful?
Incorporating the family design
Which study has been following children from infancy to adulthood and is the longest ongoing adoption study?
The Colorado Adoption Project
What does the adoption-twin combination involve?
Comparing twins adopted apart with twins reared together
What is the families-of-twins method used for?
Examining the effects of rearing environment within the family on twins and their children
What does the children-of-twins design allow researchers to examine?
The effects of parents on children and of children on parents
What is the main finding from studies of identical twins reared apart?
There is strong genetic influence and little shared family environmental influence on general cognitive ability.
What does the stepfamilies design assess?
Genetic influences by comparing full siblings with half siblings in stepfamilies
What does the combination of twins and their children allow researchers to examine?
The effects of parents on children and of children on parents
Test your knowledge of the combination designs used by behavioral geneticists, which bring together family, adoption, and twin methods for more powerful analyses. Explore the inclusion of nontwin siblings in twin studies and the combination of adoption, family, and twin designs.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
