Developmental models of supervision focus on the growth and change experienced by supervisees as they gain clinical experience and competence under supervision. There are three main types of developmental models: linear stage models, step-by-step process models for conflict resolution, and lifespan developmental models. Supervision follows a developmental process where supervisees' needs change as they advance through different stages of professional development from less to more competent. Supervisors must adjust their approach according to a supervisee's current developmental level. The format and techniques used in supervision are based on assessing a supervisee's stage of development and learning needs.