People Have Considered Various Hypotheses for Why There Is a Difference

Multiple Choice

People have considered various hypotheses for why there is a difference between the average IQ scores for American Whites and African Americans.Which of the following is NOT an explanation that is supported by evidence?

A) Genetic factors give White Americans an advantage on the test.
B) Economic factors lead to higher IQ scores among White Americans than Black Americans.
C) Stereotype threat causes Black students in America to score lower on intelligence tests.
D) IQ scores among Black Americans can be improved by reducing stereotype threat.