Objectives: There is a need to examine the utility of objective measures of attention-deficit/hyperactivity disorder (ADHD) symptoms in children. Objective measures of ADHD symptoms, such as physical activity, may provide a more nuanced assessment of behavior that can be used to augment traditional cross-informant ratings of ADHD symptoms by…

Hierarchical linear models were used to examine trajectories of impulsivity and capability between ages 10 and 25 in relation to suicide attempt in 770 youths followed longitudinally: intercepts were set at age 17. The impulsivity measure assessed features of urgency (e.g., poor control, quick provocation, and disregard for external constraints);…

The study examined the effectiveness of two psychoeducational treatment approaches and drug therapy on the impulsivity of 120 hyperactive emotionally disturbed children in two age groups (mean ages 13 and 8 years old). The psychoeducational approaches tested were modeling of reflective behavior and a specific instructional procedure to increase…

In two experiments, children were subjected to a delay of gratification procedure in which higher levels of reward were contingent upon maintaining waiting behavior. Results from both experiments indicated that the impact of a positive affect induction procedure on delay of gratification varied with age. (Author/DB)