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Wood, Alexis C.; Saudino, Kimberly J.; Rogers, Hannah; Asherson, Philip; Kuntsi, Jonna – Journal of Child Psychology and Psychiatry, 2007
Background: Activity level is an important component of children's temperament, as well as being part of the core symptom domain of hyperactivity-impulsivity within attention deficit hyperactivity disorder (ADHD). Yet it is poorly understood, due partly to limitations on parent and teacher ratings, which are typically used as measurements of these…
Descriptors: Twins, Testing, Hyperactivity, Attention Deficit Disorders