“…Parent management training (PMT) programs have been researched for the past 20 years (Maughan, Christiansen, Jenson, Olympia, & Clark, 2005) and are now recognized as a crucial part of successfully treating problematic behaviours in general such as tantrums, verbal aggression, thumb-sucking, enuresis, hyperactivity, (Barlow & Stewart-Brown, 2000), externalizing disorders such as attention-deficit/hyperactivity disorder, (Chronis, Chacko, Fabiano, Wymbs, & Pelham, 2004), oppositional defiant disorder, (Webster-Stratton, Reid, & Hammond, 2004) and conduct disorder (Gross & Grady, 2002).…”