A Researcher Using the Twin-Study Method Finds an Average Correlation

question 61

Multiple Choice

A researcher using the twin-study method finds an average correlation of .50 between monozygotic twins' scores on a measure of self-esteem. The researcher finds an average correlation of .30 between dizygotic twins' scores on this measure. The difference between the size of the correlations is statistically significant. What conclusion might the researcher draw from these results?

• A) Genetics has more of an influence on self-esteem than environment has.
• B) There is evidence for a genetic influence on self-esteem.
• C) There is no evidence for a genetic influence on self-esteem.
• D) The results are opposite of what would be expected if there were a genetic influence on self-esteem.

---

Definitions:

Visible Minorities

Groups of people who are not of the majority race in a specific country or community, often recognized by their distinct physical characteristics.

Employment Equity Groups

Designations for specific populations identified for targeted employment policies, intended to ensure equal opportunities and representation in the workforce.

Strategic Incorporation

The process of integrating strategic initiatives and objectives into the wider organizational processes and culture.

Diverse Workforce

An employment setting where employees have a wide range of characteristics, such as age, race, ethnicity, gender, sexual orientation, cultural background, and physical abilities.