What Evidence Did Spearman Cite to Support His Concept of a "G

question 11

Multiple Choice

What evidence did Spearman cite to support his concept of a "g" factor in intelligence?

• A) Mean performance on IQ tests rises until age 14-20, and then begins to decline.
• B) Changes in the instructions can alter the mean performance of various groups.
• C) Mean performance on IQ tests has been rising from one generation to the next.
• D) Most people who do well on one intellectual task do well on others tasks also.