A 22-year-old woman is seeing the PMHNP for the second time this week. At her last visit, she told the nurse practitioner she was the "best therapist in the whole world!" This week, however, the client says the PMHNP is "seriously the most horrible therapist in the universe." The patient talks in extremes and seems to see the world in black and white. Which modality helps clients understand that two opposing ideas can both be true?

Choice A reason: Existential therapy focuses on exploring meaning, freedom, and responsibility. While it encourages clients to confront contradictions in life, it does not specifically teach the concept of dialectical thinking or how to hold opposing truths simultaneously. Choice B reason: Humanistic therapy emphasizes personal growth, self-actualization, and empathy. It fosters acceptance and understanding but does not directly address the cognitive distortions or dichotomous thinking seen in borderline personality disorder. Choice C reason: Dialectical behavioral therapy (DBT) was developed specifically for individuals with borderline personality disorder. It teaches clients to accept two opposing ideas at once—such as “I am doing the best I can” and “I need to try harder”—and helps reduce black-and-white thinking. DBT is the most appropriate modality for this presentation. Choice D reason: Cognitive behavioral therapy (CBT) targets distorted thinking and maladaptive behaviors. While it is effective for many disorders, it does not emphasize dialectical reasoning as a core principle like DBT does.