What is test bias?
Cleary (1968) notes that a test is biased when "the predicted criterion value from the common regression line is consistently too high or too low for members of the subgroup." Therefore, bias is a difference in the accuracy ofpredictionson performance based on grades. Studies conducted by the SAT to predict freshman college grades have shown this to be the case.overestimatedsuccessful for African American students and, while biased, was not harmful in that it did not result in the elimination of African Americans as potential students.
of course that's not itonlyDefinition of bias. Many argue that simple differences inscoresreceives some bias when differences reliably occur between one group of people and another, even when there is evidence that the differences are "real". Thorndike and others in this field advocate the use of "biased" tests, but with different cutoff values for different groups. Mercer suggested that this should be based on an analysis of the house's culture.
Some ignore all this and claim to judge ittrialThe bias is meaningless because the tests measure what they do and they do it reliably. so the problem isfrom the userinclination. Failing tests is like saying, “Sometimes bad drivers cause car accidents. We must get rid of all cars.
Sattlerdiscusses some of the problems with IQ tests and bias in Chapter 19. Point out these problemscontraThe intelligence tests are as follows:
1) IQ tests are culturally biased as they show differences between minority groups. | |
Sattler argues that this has not been proven unequivocally. When a minority group has lower scores, differences can bereal. This may indicate a poorer education system (differences in educational opportunities, poverty, neighborhoods, family life), but this does not mean that the test is biased. Evidence should also not be relinquished, as it can be used to assess the impact of interventions and identify gaps in teaching for different groups. Furthermore, a return to "judgment calls" would introduce even more bias. while watchingmean score differencesthere may be real differences between groups in the WISC R, especially when SES collates the data. Some studies recall showing that African-Americans score 15 points lower than Caucasians on IQ tests, but when SES is controlled for, that score drops to 5 points or less. This means that being rich or poor can have a bigger impact on your IQ and perhaps your intelligence (whatever that is) than your ethnicity. Consider other effortspredictive validity. Most IQ tests are pretty good at predicting performance on competitive tests. But if the performance tests are also biased, we would expect high predictive validity, and this would not rule out bias. However, some argue that if our culture values some skills over others, the test is still an accurate indicator of a person's ability to succeed in our culture. Therefore, IQ and performance tests can have a high cultural bias, but it is desirable that they reflect the values of the dominant culture. Designing truly "culture-free" tests would mean designing tests that measure nothing. Consider other effortsconstruct validity, but the WAIS III factor structure is valid for African-American, Caucasian, and Hispanic children. Thus, the same is measured for each child. Well if that's what you mean when you sayintelligenceor not is another question Other efforts focus oncontrol bias. A CBS documentary singled out "What Would You Do If a Child Much Younger Than You Are Trying to Argue With You?" for a documentary. They stated that this was a culturally charged WISC article. The ranking of light to heavy items placed this item at 42nd and 47th for black and white children, respectively; That said, black kids got it right more often than white kids. The classification of the percentage of children who got the question right showed that 73% and 71% in black and white got this question right. Thus, "eyeball assessments" of item bias may not agree with the data. Only two items were significantly different from the WISC R, and one was removed from the WISC III. For WAIS III, items were given to AA, Hispanic, and White, and items that did not respond equally to all three groups were discarded. Therefore, in the test before its publication there were no items that discriminated between blacks and whites. However, this wink is provocative. See the CBS article. Are you saying black people teach their kids that hurting weaker people is acceptable? Be careful if you don't think in a "culturally sensitive" way. | |
2) National standards are unfair as Caucasian children are compared to Caucasian children and African American/Hispanic children are compared to Caucasian children. | |
Sattler argues that norms reflect levels of social achievement and that African Americans and Hispanics are represented in equal percentages of the total population. How would we change that? Do you collect norms for different ethnic groups? And mixed-race people (which everyone actually is). How black is black, how white is white? Does life in the country, in the suburbs or in the city make a difference? Another problem is that if minority children do worse, do they need more education or special education to make up for it? Sattler addresses the issue of self-fulfilling prophecy with teachers who find that children are getting worse and therefore expect less from them and are therefore less challenged to catch up. Children with lower scores receive less experienced teachers (because more experienced teachers work with "smart" kids), less one-on-one tutoring and classroom attention, and may not even receive some courses and educational opportunities. This manifests itself in the children themselves ("effort optimism"), but if a minority child is performing poorly, doesn't this reflect real deficits and the need for real intervention? I had a case where a childto the groundthe test, and the worker and his family described them as "slow and a little immature" but definitely not retarded. Need help you can't get? Sattler also addresses differences in standards. The correct answer to the wallet question is "give it back," and some say this is a cultural value consistent with religious, legal, and moral codes of conduct. If another culture does not have this value, it is not because of test bias that they differ in their scores, but because of cultural differences. The point is that this value is a value that American culture has. A test of the basic skills and performance levels required by our society, used to predict that performance, to do your job, must assess understanding of and adherence to prevailing values. | |
3) Minorities may not be culturally ready to be tested | |
Minority children may not appreciate the demands, incentives, time pressures, and competitive advantage required and may not view testing in the same way. Sattler says there could be something, but we need data for that. The effort optimism argument is excellent. Gardner cites a study in which African-American students were told they would do worse, and they did, but when they weren't told, they did what white kids did. Some argue that instructions like "work as fast as possible" may mean little to groups who don't see time as the dominant culture does or who don't see the value of haste. Although we tried to remove all culturally charged objects from the test, verbally explaining some ideas may be a common cultural skill among middle-class parents and children. Even the request "Yes, you eat, but they are also fruits" may not be seen by some groups as a sign that you should rethink, but only as an alternative. | |
4) White people rating African Americans cause depression | |
Sattler says the data in 25 of the 29 published studies don't support this. |
So are IQ tests biased? It depends. The answer is probably "no" if you limit the interpretations to IQ scores and what they show, but "yes" if you expand the interpretations to "intelligence" whatever that is.