“…The effect of this, however, is that any combination of symptoms of inattention and/or irnpulsivenesg and/or hyperactivity can result in an APHD diagnosis. As Ostrom and Jenson (1988) pointed out, "While the narrative description of ADHD in DSM-In-R highlights attentional problems, it wopld be theoretically possible to make the diagnosis without considering any of the attention items" (p. 263), Table 1 summarizes the diagnostic, erite?ria found in DSM-111 and DSM-III-R. As predicted, Meworn et al (1989) identified a group of nonreferred students meeti~g ADHD criteria who displayed hyperactive and impulsive but not necessarily inattentive behaviors. Based on this finding, the authors ooncluded that ADHD criteria allow identification of a more heterogeneous group than A D D m ariteria.…”