According to the Association of Child Life Professionals...
What is a Child Life Specialist?
Child life specialists are trained professionals with expertise in helping children and their families overcome life’s most challenging events.
Armed with a strong background in child development and family systems, child life specialists promote effective coping through play, preparation, education, and self-expression activities. They provide emotional support for families, and encourage optimum development of children facing a broad range of challenging experiences, particularly those related to healthcare and hospitalization. Because they understand that a child’s wellbeing depends on the support of the family, child life specialists provide information, support and guidance to parents, siblings, and other family members. They also play a vital role in educating caregivers, administrators, and the general public about the needs of children under stress.