The test publishing industry is unregulated. As a result, many commercial test publishers ignore validity, and sell the psychometric equivalent of snake oil. However, when most reputable assessment vendors care only about their bottom line, they have little incentive to care much about the validity of their assessments. And, because of the high stakes involved in global employee selection and development, this is one of the most deceptive and harmful business practices of the 21st century.
Simply put, valid assessments predict performance; assessments that lack validity cannot predict performance. In this new video, Bob Hogan expands on the importance of validity in assessments, and explains the steps necessary to establish validity.