Studying within-person variability in children's behavior is frequently hindered by challenges collecting repeated observations. This study used wearable accelerometers to collect an intensive time series (2.7 million observations) of young children's movement at school (N = 62, M[subscript age] = 4.5 years, 54% male, 74% Non-Hispanic White) in…

This research investigated whether delayed school entry was associated with higher achievement in national tests of reading and numeracy in Grades 3, 5, 7, and 9 (n = 2,823). Delayed entry was related to advantages in reading (0.14 SD) and numeracy (0.08 SD) at Grade 3, although little variance was explained (1%-2%). This slight advantage…

Children participating in the Ben-Gurion Infant Development Study were assessed with a dynamic-tracking version of the stop-signal task at the age of 5 years. The sample consisted of 60 males. Stop-signal reaction time (SSRT) was correlated with concurrent ratings of the child's attention deficit hyperactivity disorder (ADHD) symptoms.…

In a prospective study of developmental outcomes in relation to early-life otitis media, behavioral, cognitive, and language measures were administered to a large, diverse sample of children at 2, 3, 4, 6, and 9-11 years of age (N = 741). At 9-11 years of age, 9% of the children were categorized as having attention-deficit/hyperactivity disorder…

Two experiments examined hyperactive children's tendency to underfocus their attention during learning. Taken together, the results of both experiments demonstrated the validity of the attentional diffusion hypothesis and indicate the need to assess the central processing demands associated with central and incidental learning in order to evaluate…

Contrasts a fixed-rate presentation list with one in which half the items in a single list were presented at a fast rate and half at a slow rate during paired associative learning with 24 children (aged 8 to 22 years) who were diagnosed with having an attention deficit disorder. (HOD)

Physiological responses of sixteen hyperactive children between the ages of 6 and 12 were measured in order to assess characteristic attentional deficits and responses to methylphenidate. (JMB)

Investigated the development of inattentiveness and hyperactivity in middle childhood through a prospective study that followed 191 children from birth through age 11. In early childhood, quality of caregiving better predicted distractibility, an early precursor of hyperactivity, than did early biological or temperament factors. Caregiving and…

Associations between antenatal maternal anxiety, measured with the State Trait Anxiety Inventory, and disorders in 8- and 9-year-olds were studied prospectively in 71 normal mothers and their 72 firstborns. Clinical scales were completed by the mother, the child, the teacher, and an external observer. Hierarchical multiple regression analyses…

The ingestion of methylphenidate in hyperactive children was studied in classroom and informal settings. The drug seems to improve tractibility and learning in situations involving clear-cut tasks demands and high compliance, yet leaves informal behavior undisturbed. (ST)

Investigated the Type A Behavior Pattern (TABP) in 25 boys of 6-12 years who had attention-deficit hyperactivity disorder (ADHD). ADHD boys obtained higher TABP Total and Impatience- Aggression scores than normal boys. ADHD boys' scores were associated with a wide array of behavior problems and peer difficulties. (RJC)

In the presence of distracting toys, attention-deficit hyperactivity disordered (ADHD) boys spent half as much time as normal boys watching a television program. When toys were absent, there was no difference in attention between the groups. Recall of program didactic content by ADHD and normal boys did not differ. (BC)

Newborn status, ratings of temperament, and experiential (parenting) antecedents of hyperactivity were evaluated in a longitudinal investigation. Experiential variables included maternal intrusive care, seductive behavior towards child, and overstimulation of child. (PCB)

Investigated predictors of peer sociometric nominations among boys with and without attention-deficit hyperactivity disorder (ADHD). Found that aggression, covert antisocial behavior, and authoritative parenting beliefs predicted negative peer status and peer social preference. Aggression predicted peer rejection more strongly for comparison than…

Compared the "on-line" (real time, ongoing internal representation) understanding of ongoing social events of boys with and without attention-deficit hyperactivity disorder (ADHD). Found that younger children and those with ADHD showed less integrated on-line representations, accounting for poor recall and reasoning. (Author/KB)