Dr. Lynam, EARLY IDENTIFICATION OF THE FLEDGLING PSYCHOPATH - LOCATING THE PSYCHOPATHIC CHILD IN THE CURRENT NOMENCLATURE, Journal of abnormal psychology, 107(4), 1998, pp. 566-575
This research attempted to test D. R. Lynam's (1996) hypothesis regard
ing the developmental relation between adult psychopathy and children
with symptoms of hyperactivity, impulsivity, and attention problems (H
IA) and concurrent conduct problems (CP). In a large sample of adolesc
ent boys, 4 groups (non-HIA-CP, HIA only, CP only, and HIA-CP) were co
mpared on measures found to discriminate between psychopathic and nonp
sychopathic offenders. In line with predictions, the HIA-CP boys most
closely resembled psychopathic adults. HIA-CP boys scored higher than
HIA-only and non-HIA-CP boys on a measure of psychopathic personality.
As with their adult counterparts. HIA-CP boys were the most antisocia
l, were the most disinhibited, and tended to be the most neuropsycholo
gically impaired of all the groups. Implications for treatment, resear
ch, and the study of comorbidity are discussed.