Professor McGill joined the Tizard Centre in 1986 having previously worked with people with learning disabilities as an instructor, residential social worker and clinical psychologist. He is a registered clinical psychologist and board certified behaviour analyst.
Professor McGill teaches on the postgraduate programmes in applied behaviour analysis and positive behaviour support.
Professor McGill currently supervises students on topics including early intervention in challenging behaviour, system-wide positive behaviours support, improving the fidelity of interventions with challenging behaviour and supporting life skills development in young people with autism.