The two-testers scenario is used to detect discrimination in which industry?

• A. Banking
• B. Housing
• C. Insurance
• D. Education

Answer: (B)

Paired testing is a method used to reveal discrimination in housing markets. The idea is to send two comparable testers to a housing opportunity who are identical in all relevant respects except for a protected characteristic (like race, national origin, or family status). By keeping income, credit, rental history, qualifications, and timing the same, any difference in how they are treated—such as being shown fewer units, offered worse terms, or denied—points to discriminatory practice. This approach is a well-established tool in fair housing enforcement because it isolates the variable of interest (the protected characteristic) and provides observable, comparable outcomes in the housing context. While testing methods exist in other industries, the two-testers approach is most closely associated with detecting discrimination in housing transactions.