Therapeutic Alliance in Treatment Effectiveness

In clinical psychology, various therapeutic approaches are utilized to address mental health disorders. Research has examined the effectiveness of different treatments through meta-analyses, randomized controlled trials, and longitudinal studies. One particular method focuses on the therapeutic alliance between the therapist and client, positing that the strength of this relationship can significantly impact treatment outcomes. Which of the following therapeutic approaches is most likely to emphasize the importance of the therapeutic alliance as a crucial element for treatment effectiveness?