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. 1978 Jul;48(3):446-463.
doi: 10.1111/j.1939-0025.1978.tb01334.x.

Prevalence of hyperactivity in elementary school children as a function of social system definers

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Prevalence of hyperactivity in elementary school children as a function of social system definers

Nadine M Lambert et al. Am J Orthopsychiatry. 1978 Jul.

Abstract

This study seeks to reconcile the widely varying estimates of prevalence of hyperactivity in children. Parents, teachers, and physicians were asked to identify hyperactive children in a sample of some 5000 elementary school children. Approximately five percent were considered hyperactive by at least one defining system; only one percent were considered hyperactive by all three definers. Prevalence rates were relatively constant from kindergarten through fifth grade.

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