AIR conducted studies to assist the FAA in improving the effectiveness and efficiency of the controller selection process. For example, AIR conducted a concurrent criterion-related validation study of the AT-SAT test battery for selecting controllers to work in the tower cab. A secondary objective of this validation study was to examine the extent to which the AT-SAT could be leveraged to make decisions about controller placements into different facility levels. This project provided valuable insight into ways in which FAA’s existing AT-SAT battery can be used to make both selection and job placement decisions.