Group differentiated prediction
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Group differentiated prediction
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1984
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Abstract
Studies of predictive bias have frequently shown
that a prediction equation based on majority group
members tends to overpredict the criterion performance
of minority group members. Two statistical artifacts
that may cause the overprediction finding are
reviewed and evaluated using data for black and white
students at 30 law schools. It is shown that (1) the degree
of overprediction decreases as the predictive accuracy
for white students increases, and (2) that overprediction
can be caused by the effects of selection
on variables not included in the regression model. Use
of Heckman’s (1979) procedure to adjust the estimates
of the regression parameters was found to essentially
eliminate overprediction.
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Previously Published Citation
Linn, Robert L & Hastings, C. Nicholas. (1984). Group differentiated prediction. Applied Psychological Measurement, 8, 165-172. doi:10.1177/014662168400800205
Suggested citation
Linn, Robert L.; Hastings, C. Nicholas. (1984). Group differentiated prediction. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/101882.
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