Yerkes concluded that the average mental age of White American adults was:
A) 22 years
B) 19 years
C) 13 years
D) 10 years

Name: Yerkes concluded that the average mental age of White American adults was: A) 22 years B) 19 years C) 13 years D) 10 years
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Yerkes found that the average mental age of White American adults was 13 years, which was significantly lower than expected. This led to concerns about the quality of education and the potential impact on national intelligence and economic success.

Yerkes Concluded That the Average Mental Age of White American