Expert testimony on decision processes in employment cases.

Abstract

The 1991 Civil Rights Act and recent U.S. Supreme Court decisions have modified standards applicable to psychometric or statistical proof of discrimination in employment cases. Changes in the legal standards have increased the role for psychological experts to prove or rebut allegations of disparate impact of hiring or promotional criteria, whether those criteria caused the observed disparities in the workforce, and whether the legitimate needs of the employer were substantially served by the employer's selection criteria. Three different methods or approaches to meet the legal standards are discussed: (a) reliance on traditional psychometric validity analyses; (b) regression analysis or the “policy-capturing” method; and (c) the survey data approach. These techniques are illustrated by reference to three cases in which experts successfully presented this evidence. While the application of the 1991 Civil Rights Act remains somewhat unclear, these approaches may prove useful in future employment discrimination cases.