Final answer:
Carl Rogers created client-centered therapy, which prioritizes the patient's role in therapy and the therapist displaying unconditional positive regard, genuineness, and empathy.
Step-by-step explanation:
One of the changes in the field of counseling created by Carl Rogers was the development of client-centered therapy. Rogers believed that the therapist needed to display three features to maximize the effectiveness of this approach: unconditional positive regard, genuineness, and empathy. In client-centered therapy, the patient takes a lead role in the therapy session, working through their own issues with the support of the therapist. This approach is still commonly used in psychotherapeutic settings today.