564 CONRAD/POTTER primary symptoms: either hyperactivity or inattention. Thus, the diagnosis focused on attention deficits with two major subtypes: Attention-Deficit Disorder with Hyperactivity and Attention- Deficit Disorder without Hyperactivity (deemed the less severe of the two categories). The symptoms were focused largely on children's activities (e.g., "runs about or climbs on things excessively," "frequently calls out in class," "has difficulty concentrating on schoolwork or other tasks requiring sustained attention"). To be diagnosed, patients needed to exhibit symp- toms before age seven. Secondly, the range of behaviors included within the official diagnosis became more com- prehensive. Some symptoms were related to school-based behavior, such as "frequently calls out in class"; whereas others were more interpersonal and ephemeral in nature, e.g., "often acts before thinking" or "is easily distracted." These changes in the diagnostic category meant that individuals who may not have
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