Matched pair testing is used to detect discrimination. The focus is to determine the presence of disparate treatment in the offering of goods and services during the sales process. Traditionally used to determine discrimination in housing and mortgage lending, the research methodology involves the use of pairs of testers or mystery shoppers, representing test and control cells. Control cells usually comprise non-protected classes of consumers and test cells comprise protected classes of consumers under the Fair Housing Act. For example, control cells comprise non-minority or male mystery shoppers while test cells comprise African American or Hispanic or female mystery shoppers. The mystery shoppers in each pair (e.g., African American and White) conduct the tests separately but each is pro