Sep. 30, 1998 The pervasiveness of prejudice, affecting 90 to 95 percent of people, was demonstrated today in a Seattle press conference at the University of Washington by psychologists who developed a new tool that measures the unconscious roots of prejudice.
At the press conference, the researchers also activated a Web site -- http://depts.washington.edu/iat/ -- that will enable people to take a series of quick tests that measure their unconscious levels of race and age prejudice, gender stereotyping and self-esteem.
The psychological tool that measures unconscious components of prejudice, called the Implicit Association Test, was created by University of Washington psychology professor Anthony Greenwald, who is working with Mahzarin Banaji, a professor of psychology at Yale University, to further develop the test.
The test has the potential to reveal things about people that they may prefer not to know, explained Greenwald, who developed it with funding from the National Science Foundation and National Institute of Mental Health.
The test can be administered individually using a computer or to a small or large group using a slide projector. It measures implicit or unconscious evaluations and beliefs that spring from strong, automatic associations of which people may be unaware. An important example is automatic race preference. A person may not be aware of automatic negative reactions to a racial group and may even regard such negative feelings as objectionable when expressed by others. Many people who regard themselves as nonprejudiced nevertheless possess these automatic negative feelings, according to Greenwald and Banaji.
In experiments and demonstrations the test has been used to show the unconscious roots of prejudice toward a variety of racial, ethnic and religious groups, as well as to illuminate automatic gender and age discrimination. Among other tests, it has been used to demonstrate automatic components of attitudes of whites towards blacks, Germans toward Turks, Poles toward Germans, Australians toward aboriginals and young toward old.
At the press conference Greenwald and Banaji used the test to demonstrate the prevalence and strength of Americans' automatic racial preference for white over black. Participants in the demonstration were first asked to rapidly classify (by tapping their left or right knee) each of a list of names (shown on a projector screen) into those that are most often considered black (such as Malik and Lashonda) and those that are most often seen as white (such as Tiffany and Peter). Next they were asked to rapidly classify each of a list of words as pleasant in meaning (such as love and baby) or unpleasant (such as war and vomit)
In the crucial step that followed, participants classified a randomly ordered list that included all of the black names, white names, pleasant words and unpleasant words. First they were asked to tap their left knee for any black name or unpleasant-meaning word and their right knee for any white name or pleasant-meaning word. Second, the instructions were changed. They were asked to tap their left knee for white names and unpleasant words and their right knee for black names and pleasant words. The remarkable result was that it took about twice as long to respond to the second task, even though objectively the tasks were of equal difficulty.
The greater difficulty of giving the same response to black names and pleasant words provides a measure of automatic preference for the white names. This effect -- the speed difference between the two tasks -- is so large that a participant at one previous demonstration, University of British Columbia psychology professor Eric Eich described it as "measurable with a sundial." Banaji and Greenwald think unconscious prejudice may occur despite people's wishes and results from the culture they live in and the culture's attitudes towards stigmatized groups. A culture leaves an imprint on the mental structure and most people have more or less the same mental imprint.
While Banaji and Greenwald admitted being surprised and troubled by their own test results, they believe the test ultimately can have a positive effect despite its initial negative impact. The same test that reveals these roots of prejudice has the potential to let people learn more about and perhaps overcome these disturbing inclinations.
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