Young children with autism spectrum disorder (ASD) often demonstrate delays in expressive communication, impacting their ability to independently function in typical environments. Individuals with ASD who develop expressive language during early childhood experience better outcomes later in life; therefore, examination of naturalistic language…

Background: There is a lack of empirical research investigating challenging behaviour in children with autism with severe speech impairments in naturalistic settings. The aim of the present study was to investigate challenging behaviour among Australian and Taiwanese children with autism who are non-verbal or have limited speech (i.e. less than…