“…A study by Whalen, Jamner, Henker, Delfino, and Lozano (2002) supports an emotional deficit among adolescents with severe symptomatology, showing more negative and fewer positive moods as well as lower alertness. Additional studies suggest an impaired psychosocial functioning, indicated by impaired self-esteem as well as a decreased school-and social-related quality of life compared to healthy controls, physically disabled children, and individuals with other psychiatric disorders (Bastiaansen, Koot, Bongers, Varni, & Verhulst, 2004a;Bastiaansen, Koot, Ferdinand, & Verhulst, 2004b;Escobar et al, 2005;Klassen, Miller, & Fine, 2004;Sawyer et al, 2002;Thompson et al, 2004;Topolski et al, 2004).…”