 The purpose of this study is to examine the efficacy of a worry exposure intervention, a form of cognitive behavioral therapy CBT, in comparison to a waitlist condition for the treatment of Generalized Anxiety Disorder. There will be a total of 60 subjects enrolled at the University of Texas at Austin. Patients will be randomized like a flip of a coin to either 12-sessions of WE therapy or a 12-week waitlist before being offered entry into therapy. 