In a Certain Population with a Mean IQ of 100

question 19

Multiple Choice

In a certain population with a mean IQ of 100, the heritability of IQ was measured at 0.6. A chapter of Mensa in this population has an average IQ of 140. If they are otherwise typical of their population, about how many of their IQ points can be attributed to their genes?

• A) 60
• B) 84
• C) 24
• D) 100
• E) 40

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Definitions:

Correlational Experiment

A research method that explores the relationship or association between two or more variables without inferring a causal link.

Maturation of Personality

The process by which an individual's personality traits become more stable and pronounced over time due to aging and life experience.

Higher Conscientiousness

Exhibiting an increased level of the trait characterized by organization, dependability, and carefulness.

Social Investment Theory

A psychological theory suggesting that as individuals mature, they invest more in their social roles, which leads to an increase in conscientiousness and stability.