Like all other master level licensed professions (see counseling and licensed professional counselor) the model act sets the standard for a master's degree. This requirement states that the person has achieved textbook knowledge of behavior analysis which can be then tested through the exam offered by the Behavior Analyst Certification Board or the one offered by the World Center for Behavior Analysis. It also requires an internship in which a behavior analysts works under another master or Ph.D. level behavior analyst for a period of one year (750 hours) with at least two hours/week of supervision.