The Association for Play Therapy (APT) defines play therapy as “the systematic use of a theoretical model to establish an interpersonal process wherein trained play therapists use the therapeutic powers of play to help clients prevent or resolve psychosocial difficulties and achieve optimal growth and development.”

The APT Research Committee’s Play Therapy Evidence-Based Practice Statement suggests that children between the ages of 3 to 12 years old should participate in play therapy as an intervention to alleviate symptoms related to behavioral and emotional problems, as well as contribute to overall wellness and healthy development.