A model has been developed for using role play in the supervision and training of hypnotherapy. Specific techniques can be role played by trainee and supervisor which can enable the trainee to develop skill and confidence in the use of hypnotic techniques. Hypnotic induction, listening, observing and providing feedback, relaxation, problem-solving, cognitive restructuring, and metaphor can all be role played, with the supervisor taking on the role of the hypnotherapist and the trainee taking on the role of the client. In addition, role play can be used to help the trainee to gain mastery of a new technique or to unblock the work with a particular patient. Role play also permits exploration of transference and countertransference. Finally, the trainee may use the role play experience to foster his/her own growth and development since role play constitutes in vivo experience. (Author/NB)