The current study examined the effectiveness of an experimental functional analysis for assessing the functions of emergent vocal-verbal behavior in children with developmental disabilities. Experiment 1 consisted of a systematic replication of Lerman et al. (2005). Participants were 3 children with developmental disabilities, between the ages of…

Autism is a developmental disability that manifests as impairment in three primary areas: social interaction, communication and imaginative activities, and reactions to environmental stimuli. The appearance of autism spectrum disorder ranges from children who are very low functioning, nonverbal, stimulus seeking, aggressive, antisocial, and…

We trained parents to conduct functional analyses (n = 25) and functional communication training (n = 23) in home settings over a four-year period with 25 young children who had developmental and behavioural disorders. For 12 of the children, pre-treatment (baseline) probes and post-treatment stimulus condition probes were conducted to assess…