Self-injurious and aggressive behaviors are common in fragile X syndrome (FXS). However, little is known about the persistence of these behaviors and associated risk markers. We established the prevalence and persistence of self-injurious and aggressive behaviors over eight years in males with FXS, and associations with risk markers. Results…

Despite important clinical and nosological implications, the comorbidity of oppositional defiant disorder (ODD) and generalized anxiety disorder (GAD) has received little attention. A clinic-based sample of 243 boys (ages 6-10 years), their parents, and teachers participated in an evaluation that involved assessments of behavioral, academic, and…

This study examined both the frequency and type of noncompliant behavior in 14 boys with co-occurring Attention-Deficit/Hyperactivity Disorder (ADHD) and oppositional defiant (OD) behavior, 24 boys with only ADHD, and 33 nonproblem boys. Mothers rated boys' noncompliant behavior on the Response Style Questionnaire (RSQ) and observers coded…

Background: To assess the co-occurrence in deviant trajectories of parent-rated symptoms of conduct disorder (CD), oppositional defiant disorder (ODD) and attention-deficit/hyperactivity disorder (ADHD) from age 4 to 18 years old in a general population sample of Dutch children. Methods: Developmental trajectories of CD, ODD, and ADHD were…

The article describes an observational playroom procedure (Structured Observation of Academic and Play Settings) used for evaluating symptomatic behaviors of hyperactive boys in the clinic setting. Case studies are presented to illustrate the differing pattern of playroom behavior in boys with different types of externalizing disorders. (Author/DB)

The article presents case studies of two males with Attention Deficit Disorder when first referred for clinical evaluation as children with follow-up at age 21. Results indicated consistency in behavior patterns and differences between subjects at referral predicted outcomes as adults. (Author/DB)

Comparison of 31 elementary grade boys with learning disabilities and 52 boys with behavior disorders who either did or did not also display hyperactive behavior found significant differences between groups on the Classroom Behavior Inventory in three areas: Hostility versus Consideration, Extroversion versus Introversion, and Independence versus…

Examines relations between Matthews Youth Test for Health ratings on hyperactive boys and diverse measures obtained from five sources: direct behavior observations; staff evaluations, nonparticipant observer ratings, peer nominations, and self-reports. (HOD)

Among findings from a comparison of 13 preschool hyperactive and control males assessed on receptive-communications tasks that required listening and delayed response were that Ss did not differ in task-related movements or verbalizations, but that hyperactive Ss verbalized impulsively during transitions and tasks requiring response delay. (DB)

The basic hypothesis of this study was that among elementary school boys, those judged by their teachers to be hyperactive would have significantly more minor physical anomalies than those boys judged by their teachers to be non-hyperactive. A total of 46 hyperactive and 44 non-hyperactive children as rated by their teachers were the experimental…

This paper covers selected findings from three studies that compared different diagnostic groups: boys with attention deficit disorder (ADD) with or without hyperactivity (HY) but normal reading ability; boys with reading disability (RD) but not HY; and boys with both RD and HY. Studies examined an adapted task to assess frontal and temporal lobe…

Psychopathology in outpatient children was explored using two classification systems. Clinically derived Diagnostic and Statistical Manual of Mental Disorders (Third Edition, Revised) (DSM-III R) diagnoses in three high frequency diagnostic groups were compared to empirically derived Child Behavior Checklist (CBCL) scores for an overall sample of…