Mark Has Just Finished a Longitudinal Twin Study of Intellectual

question 35

Multiple Choice

Mark has just finished a longitudinal twin study of intellectual performance.He included both identical and fraternal twin pairs in his study.Based on previous research,what would you predict he will find regarding age-related changes in the similarity of their intellectual scores?

• A) Similarity will increase for identical twins and decrease for fraternal twins.
• B) Similarity will decrease for identical twins and increase for fraternal twins.
• C) Similarity will remain constant for identical twins and increase for fraternal twins.
• D) Similarity will remain constant for fraternal twins and will decrease for identical twins.

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Definitions:

Private Enterprise System

An economic system where private individuals or businesses own capital goods and the production of goods and services is based on supply and demand in the general market.

Intellectual Inputs

Contributions of knowledge, ideas, expertise, and intellectual property to a project, organization, or production process.

Physical Labor

Physical labor refers to work that requires physical effort or manual tasks as opposed to mental work.

Industrial Revolution

A period of major industrialization from the late 18th to early 19th centuries that transformed primarily agrarian, rural societies into industrialized, urban ones.