How to Use the Calculator
- Enter the total population size and the number of unfavorable candidates in the population.
- Enter the total number of applicants and the number of unfavorable candidates among applicants.
- Enter the total size of the protected group and the number of unfavorable candidates in that group.
- Click the "Calculate" button to determine if there is adverse impact.
Understanding the Results
The calculator provides three key ratios:
- Population Adverse Impact Ratio: The proportion of unfavorable candidates in the general population.
- Applicant Adverse Impact Ratio: The proportion of unfavorable candidates among applicants.
- Protected Group Adverse Impact Ratio: The proportion of unfavorable candidates in the protected group.
Adverse Impact Principle
Adverse impact occurs when a selection process results in a significantly lower proportion of members from a protected group being selected compared to their representation in the relevant labor market.
The calculator uses a common statistical standard where a protected group adverse impact ratio less than 0.80 (or 80%) indicates adverse impact. This means that if 80% or fewer of the protected group is selected compared to their representation in the applicant pool, adverse impact is indicated.
Important Considerations
- This calculator provides a preliminary screening tool for adverse impact analysis.
- For formal adverse impact determinations, consult with legal counsel and review additional statistical analyses.
- The calculator assumes random applicant pools and does not account for sampling error.
- Use this tool as part of a comprehensive approach to fair hiring practices and equal opportunity.