As Reported in the Textbook, Research Demonstrating a Genetic Influence

question 43

Multiple Choice

As reported in the textbook, research demonstrating a genetic influence on a person's level of extraversion- introversion comes primarily from research

• A) using the twin-study method.
• B) comparing adopted children and biological children to their parents.
• C) comparing strength of relationship with similarity of personality scores.
• D) comparing adopted children's personalities with the personalities of their biological parents.

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Definitions:

Need for Competence

The desire to interact effectively with the environment, to master tasks, and to achieve proficiency.

Need for Achievement

A psychological trait that drives an individual to pursue and attain goals.

Intrinsic Motivation

Motivation driven by an interest or enjoyment in the task itself, and exists within the individual rather than relying on any external pressure.

Need for Competence

An individual's innate desire to be effective in dealing with the environment, feeling capable, and skilled.