Abstract
Attention deficit disorder is the current nosological attempt of the American Psychiatric Association to label the behaviors which have variously been described under the hyperkinetic syndrome, hyperkinesis, minimal brain dysfunction, and so forth. A series of difficulties with the other labels brought about this change, specifically, the demonstration in a sample of over 30,000 7 year old children that there was, in fact, no clustering of symptoms that related neurological, behavioral, and academic variables. In addition, no common etiological, biological, or unique treatment characteristics consistent with the purported minimal brain dysfunction syndrome could be validated (Nichols and Chen, 1980).
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