“Gottfredson, Linda S. (1994). "The science and politics of race-norming". American Psychologist. 49 (11): 955–963 Disparate impact (racial imbalance) in employee selection constitutes prima facie evidence of unlawful discrimination. Research in personnel psychology has shown, however, that valid and unbiased selection procedures often guarantee disparate impact and that they will continue to do so as long as there remain large racial disparities in job-related skills and abilities. Employers are in a legal bind because often they can avoid disparate impact only by engaging in unlawful disparate treatment (racial preferences).” Affirmative ActionEthnic ConflictRace Norming Author:Linda Gottfredson