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Adverse Impact Toolkit™
Availability Comparison

This program compares one group’s representation (e.g., percentage of women in a job group) to their availability in the qualified labor market. Statistical tests are used to indicate significant areas of under-utilization. Initially used in Hazelwood School District v. United States, 97 S.Ct. 2736 (1977), this adverse impact test has multiple applications in EEO analysis and litigation. The specific tests included are:

  • Binomial Probability (estimated, two-tail): This test uses an estimator formula for the binomial probability distribution to evaluate the statistical significance of the group’s utilization rate.

  • Binomial Probability (exact, two-tail): This test calculates the exact probability of the data set using precise calculations for the exact likelihood of the group’s utilization rate.