 A version of the BAI, the Beck Anxiety Inventory-Trait (BAIT), was developed in 2008 to assess trait anxiety rather than immediate or prolonged state anxiety, much like the STAI.However, unlike the STAI, the BAIT was developed to minimize the overlap between anxiety and depression.A 1999 review found that the BAI was the third most used research measure of anxiety, behind the STAI and the Fear Survey Schedule, which provides quantitative information about how clients react to possible sources of maladaptive emotional reactions.