Your Textbook Notes That the Average Lower IQ Scores Recorded

Multiple Choice

Your textbook notes that the average lower IQ scores recorded for African Americans in the United States are remarkably similar to the lower scores recorded for disadvantaged ethnic minorities in other countries. This provides strong support for the idea that:

A) there are genetically driven intelligence differences between the groups.
B) social, cultural, and economic factors explain variations in IQ.
C) IQ tests do not really measure anything meaningful.
D) IQ differences cannot really be changed.