Which of the Following Statements Regarding Differences in IQ Is

question 125

Multiple Choice

Which of the following statements regarding differences in IQ is NOT supported by research findings?

• A)Group differences in average IQ can be influenced by environmental factors, even if the heritability of intelligence is high.
• B)The average difference in IQ between minority groups and Caucasians is largely a function of genetic factors.
• C)Children from the lowest social classes score lower on IQ tests than do children from the highest social classes.
• D)The average IQ for many of the larger minority groups in the United States is lower than it is for Caucasians.

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Definitions:

Fixed Ratio

A schedule of reinforcement where a response is only rewarded after a specified number of responses. It is often used in behavioral psychology.

Variable Interval

A reinforcement schedule where rewards are given after unpredictable time intervals, leading to moderate but steady response rates.

Fixed Interval

In operant conditioning, a schedule of reinforcement where the first response is rewarded only after a specified amount of time has elapsed.

Partial Reinforcement Effect

The typical outcome of a variable ratio of reinforcement in which a slow rate of initial learning is coupled with resistance to extinction.