RT Article T1 Intellectuas performance and school failure in children with attention deficit hyperactivity disorder and in their siblings JF Journal of abnormal psychology VO 102 IS 4 SP 616 OP 623 A2 Kraus, Ilana A2 Biederman, Joseph A2 Perrin, James LA English YR 1993 UL https://krimdok.uni-tuebingen.de/Record/1640292519 K1 Hyperaktivität K1 Schulerfolg K1 Aufmerksamkeitsstörung