Which type of therapy allows clients to enact alternative roles, as proposed by Kelly?

The correct answer, fixed-role therapy, is significant in Kelly's Personal Construct Theory because it allows clients to adopt and enact alternative roles as a method of exploring new behaviors and perspectives. This type of therapy is designed to encourage individuals to experiment with different ways of being by taking on roles that may differ from their usual self-concept. By doing so, clients can gain insights into how their personal constructs shape their behavior and worldview.

In fixed-role therapy, clients are provided with a specific role to play that is designed to challenge their existing constructs and encourage personal growth. This experiential approach facilitates a deeper understanding of oneself as clients act out the new roles, providing a form of experimentation that reflects Kelly’s view that our understanding of reality is shaped by our personal constructs.

The other forms of therapy mentioned do not specifically embody this role-enacting aspect as strongly as fixed-role therapy does. While role-playing therapy also involves enacting different roles, it is usually more focused on social interactions rather than a structured approach to challenging personal constructs. Behavioral therapy primarily emphasizes conditioning and reinforcement of behaviors rather than exploration through role enactment. Insight therapy focuses on understanding underlying psychological processes but does not inherently involve taking on new roles or perspectives as a means of therapeutic change.