The American Psychological Association 's report Intelligence : Knowns and Unknowns states that IQ tests as predictors of social achievement are not biased against people of African descent since they predict future performance , such as school achievement , similarly to the way they predict future performance for European descent . The American Psychological Association 's report Intelligence : Knowns and Unknowns stated that in the United States IQ tests as predictors of social achievement are not biased against African Americans since they predict future performance , such as school achievement , similarly to the way they predict future performance for Whites .