Twin and Adoption Studies Suggest That Differences in Shared Environments

question 3

Multiple Choice

Twin and adoption studies suggest that differences in shared environments e.g., overall family, warmth, social class, and other features of the family environment that siblings share) account for approximately what percentage of the variance of trait scores?

• A) 70%-80%
• B) 40%-50%
• C) 20%-25%
• D) 0%-5%

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Definitions:

Breathing

The process of inhaling and exhaling air, facilitating the exchange of gases (oxygen and carbon dioxide) in the respiratory system.

Dead

A state of biological cessation where an organism no longer exhibits any signs of life or metabolic activity.

Necessary Condition

A condition that must be present for an event or entity to occur or exist.

Birthday

The anniversary of the day on which a person was born, typically celebrated as an annual event.