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:

Distributed Practice

A learning strategy that involves spreading study sessions and practice over time.

Retrieving Memory

The process of recalling information stored in the brain.

Mnemonic Device

A memory aid, such as a pattern, acronym, or visual image, used to enhance recall of information.

Hypnotic Age Regression

A therapeutic technique in which a person is guided to recall and sometimes re-experience events from their past while under hypnosis.