Dallas believes that he will never be successful or likable enough. His friends tell him that he is too hard on himself, but he persists in the belief that he will never live up to his own high standards. Because he needs to exchange his negative and unrealistic beliefs about himself for more realistic ones, Dallas would most likely benefit from treatment that includes:.

cognitive restructuring.

Explanation:

Dallas believes that he will never be successful or likable enough. His friends tell him that he is too hard on himself, but he persists in the belief that he will never live up to his own high standards. Because he needs to exchange his negative and unrealistic beliefs about himself for more realistic ones, Dallas would most likely benefit from treatment that includes cognitive restructuring.

Cognitive restructuring is a cognitive behavioral therapy which involves the identification of negative thoughts and thought patterns which affects an individual negatively and changing those thoughts and thought patterns.

With cognitive restructuring, Dallas negative thought pattern about himself could be changed into a more positive one.

classical republicanism, also known as civic humanism, is a form of republicanism  developed in the renaissance inspired by the governmental forms and writings of  classical  antiquity, especially such  classical  writers as aristotle, polybius, and cicero.