Your Text Reports That the Correlation Between Identical Twins' Scores

question 64

Multiple Choice

Your text reports that the correlation between identical twins' scores on aggression measures is about .43; the correlation between fraternal twins' scores on aggression measures is around .14. Most immediately, these coefficients indicate:

• A)a sizeable genetic contribution to aggression
• B)a minor genetic contribution to aggression
• C)a minimal role for shared environmental factors in aggression
• D)both A and C

---

Definitions:

Health Care

The organized provision of medical services to individuals or communities, including prevention, diagnosis, treatment, and management of illnesses, diseases, and other physical and mental impairments.

Progressive Reform

A series of political and social reforms in the late 19th and early 20th centuries aimed at addressing issues of corruption, inefficiency, and social injustice within American society.

New Middle Class

A socio-economic group that emerged, characterized by increased educational opportunities, higher incomes, and an enhanced standard of living, often in the context of industrializing societies.

Ethnic Minorities

Groups of people who differ in race, religion, or culture from the majority population in the society in which they live.