The Effectiveness of Parent Training as a Treatment for Preschool Attention-Deficit/Hyperactivity Disorder: Study Protocol for a Randomized Controlled, Multicenter Trial of the New Forest Parenting Program in Everyday Clinical Practice

Anne-Mette Lange   ¹ , MApsych,MSc (Clinical Psychology) ;   David Daley   ² , PhD ;   Morten Frydenberg   ³ , PhD ;   Charlotte U Rask   ^{1, 4} , M.D,PhD ;   Edmund Sonuga-Barke   ^{5, 6, 7} , PhD ;   Per H Thomsen   ^{1, 8} , MD,DMSc

¹ Centre for Child & Adolescent Psychiatry, Research Department, Aarhus University Hospital, Risskov, Denmark

² Division of Psychiatry and Applied Psychology, School of Medicine & Centre for ADHD and Neurodevelopmental Disorders Across the Lifespan & NIHR MindTech Health Care Technology Cooperative, Institute of Mental Health, University of Nottingham, Nottingham, United Kingdom

³ Section for Biostatistics, Department of Public Health, Aarhus University, Aarhus, Denmark

⁴ Research Clinic for Functional Disorders and Psychosomatics, Aarhus University Hospital, Aarhus, Denmark

⁵ Developmental Brain-Behaviour Laboratory, Academic Unit of Psychology, University of Southampton, Southampton, United Kingdom

⁶ Research Department, Centre for Child & Adolescent Psychiatry, Aarhus University Hospital, Risskov, Denmark

⁷ Department of Experimental Clinical & Health Psychology,, Ghent University, Ghent, Belgium

⁸ Faculty of Medicine, Trondheim University, Trondheim, Norway