“…Since the publication of DSM-III in 1980, however, a total of 222 clinicreferred children who meet DSM-III criteria for ADD/WO have been described in research articles and presentations (Berry, Shaywitz, & Shaywitz, 1985;Carlson, Alvarez, & Needleman, 1989;Conte, Kinsbourne, Swanson, Zirk, & Samuels, 1986;Edelbrock, Costello, & Kessler, 1984;Famularo & Fenton, 1987;Frank & Ben-Nun, 1988;Hynd, Lorys, Semrud-Clikeman, Nieves, Huettner, & Lahey, in press;Hynd et al, 1988;Lahey, Schaughency, Hynd, Carlson, & Nieves, 1987;Maurer & Stewart, 1980;Saul & Ashby, 1986;Ullman & Sleator, 1985). Ninety-seven children considered to have ADD/WO according to experimental criteria based on DSM-III have also been identified in school-based samples (Barkley, DuPaul, & McMurray, in press, 1990;Carlson, Lahey, & Neeper, 1986;King & Young, 1982;Lahey, Schaughency, Strauss, & Frame, 1984;Sargeant & Scholten, 1985a).…”