Cassel Research Centre

In 1978 Dr Costello was elected as Australian Chair and later Director At Large for the International Council of Psychologists (Est 1943). He is a National Faculty Member of the United States Sports Academy; Fellow and Diplomate of the American Board of Medical Psychotherapists; Diplomate of the American Psychotherapy Association; International Affiliate of the American Psychological Association; Chief Australian Liaison Officer for the American Board of Forensic Examiners; Fellow and Diplomate of the American College of Forensic Examiners. In 1997, Dr Costello was elected Vice Chairman of the American Board of Psychological Specialties and in 1999, Australian Chief Liaison Officer. He was re-elected ABPS Chairman for Forensic Neuropsychology and continues serving in that honorary capacity.