Appendix 3 – Studies included in the data extraction and linking procedure Abikoff H, Gittelman R (1985) Hyperactive children treated with stimulants. Is cognitive training a useful adjunct? Arch Gen Psych 42:953-961 Anckarsäter H, Stahlberg O, Larson T, Hakansson C, Jutblad SB, Niklasson L, Nydén A, Wentz E, Westergren S, Cloninger CR, Gillberg C, Rastam, M (2006) The impact of ADHD and autism spectrum disorders on temperament, character, and personality development. Am J Psychiatry 163:1239-1244 Axelrod MI, Zhe EJ, Haugen KA, Klein JA (2009) Self-management of on-task homework behavior: A promising strategy for adolescents with attention and behavior problems. School Psychol Rev 38:325333 Babb KA, Levine LJ, Arseneault JM (2010) Shifting gears: Coping flexibility in children with and without ADHD. 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