OBJECTIVE The findings of genetic, imaging and neuropsychological studies of attention-deficit hyperactivity disorder (ADHD) are mixed. To understand why this might be the case we use both dimensional and categorical symptom measurement to provide alternate and detailed perspectives of symptom expression. METHOD Interviewers collected ADHD, conduct problems (CP) and sociodemographic data from...

Maternal report of types of conduct problems in a high-risk sample of 228 boys and 80 girls (ages 4–18) were examined, using a version of the Child Behavior Checklist, expanded to include a range of covert and overt antisocial items (stealing, lying, physical aggression, relational aggression, substance use, and impulsivity). Age and sex effects were investigated. Boys were significantly more p...

OBJECTIVE To determine whether individual differences in emotional reactivity predicted high levels of conduct problems and/or emotional (depressive and anxiety) symptoms at 1-year follow-up in a community sample of 7- to 11-year-old children (N = 659). METHOD The study used a prospective design with picture perception methodology at baseline to elicit emotional responses from children. Condu...

Maltreatment places children at risk for psychiatric morbidity, especially conduct problems. However, not all maltreated children develop conduct problems. We tested whether the effect of physical maltreatment on risk for conduct problems was strongest among those who were at high genetic risk for these problems using data from the E-risk Study, a representative cohort of 1,116 5-year-old Briti...

BACKGROUND High levels of attentional and hyperactivity problems in school-aged children, even if subthreshold for attention-deficit hyperactivity disorder (ADHD), are associated with academic under-achievement. Few large-scale, community-based studies have investigated the relationship between pre-school and adolescence. AIMS To investigate whether pre-school hyperactivity/inattention and co...

Clinical scenario Mrs X attends the clinic for removal of her intrauterine device (IUD). She explains that she had it inserted as emergency contraception and now wants it removed with this period. While on the couch, she confides that her general practitioner (GP), a close friend, had fitted the IUD in his own home to avoid anyone in the village knowing about her need. She had been away to a co...

This document provides a set of guidelines for personal interaction in the Internet Engineering Task Force. The guidelines recognize the diversity of IETF participants, emphasize the value of mutual respect, and stress the broad applicability of our work. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at in effect on the date...

Adolescents who develop severe conduct disorders are at greater risk of becoming involved in juvenile crime, including property crime, interpersonal violence, theft, arson and illegal substance use. Prior research has found that dysfunctional parenting practices often place children at risk of developing conduct problems and are among the strongest predictors of later delinquent behaviour. Vari...

Age difference in the etiology of the relationship between childhood negative emotionality (NE) and conduct problems (CP) has not been previously investigated. Mothers of 662 pairs of twins completed questions on the emotionality (NE) scale of the EAS temperament survey and the CP scale of the Strengths and Difficulties Questionnaires (SDQ) via a telephone interview. Twin data were analyzed sep...