Inclusion Criteria:  Intervention phase:  child aged 2-5 years and either:  diagnosed with Autism is a neurotypical child with no prior contact with a Child Development Clinical Service for social communication problems Focus groups, interviews, surveys:  either a parent of a child diagnosed with autism, or clinician who is involved in autism diagnosis  Exclusion Criteria:  Intervention phase:  neurotypical child has prior referral to Child Development Clinical Service Child child is outside of age range child not under the care of Child Development Clinical Service Focus groups, interviews, surveys:  parent not of child with Autism, or a clinician not involved in autism diagnostic services