What term is used to describe evidence of authority or entitlement usually in written form?

The term "credentials" is used to describe evidence of authority or entitlement, typically in written form. This can encompass various documents such as diplomas, certifications, licenses, and other formal qualifications that demonstrate an individual's professional qualifications and capabilities in a particular field. In the context of music therapy, credentials are vital because they establish the therapist's training, experience, and competency to provide therapeutic services.

Credentials serve not only as proof of education and training but also help to instill trust and confidence in clients and other professionals. They play a critical role in professional environments where regulatory standards and ethical practices are paramount, ensuring that clients receive appropriate and effective care from qualified practitioners.