For over 100 years, psychologists have tried to develop pre-hire assessments to tell you if a candidate will be a sales star or a sales bust. These tests can give you valuable insight to help you make the right choice, or they can be a waste of time that drives top talent away. These assessments have come a long way in 100 years, and choosing the right one is critical. This guide explains 6 key questions you must answer when buying a sales hiring assessment.