Effectiveness of CBT Across Anxiety Disorders

An analysis of treatment effectiveness for anxiety disorders often involves evaluating various therapeutic approaches. Among these, cognitive-behavioral therapy (CBT) has gained empirical support for its efficacy in treating anxiety disorders. Recent research, however, has indicated that different anxiety disorders may respond variably to CBT, and some treatments take precedence according to the specific disorder. Which of the following anxiety disorders has been shown to consistently exhibit lower response rates to traditional CBT compared to others?