When I was still at the university, our statistics class was used as a sample for a company creating such tests. We had to fill out a test and hand a second f

When I was still at the university, our statistics class was used as a sample for a company creating such tests. We had to fill out a test and hand a second form to someone who knew us well enough to judge our social behaviour. The goal of this was to validate that the test. When asked what would happen if the test was not valid, the company representative answered: "There are 2 ways to handle such a proiblem: we can change the test or we can try again with another sample group. We prefer to change the sample group."