Date of Award

8-1983

Degree Name

Master of Arts

Department

Psychology

First Advisor

Dr. Malcolm Robertson

Second Advisor

Dr. R. Wayne Fuqua

Third Advisor

Dr. Chris Koronakos

Access Setting

Masters Thesis-Open Access

Abstract

The purpose of this study was to determine whether the administration of methylphenidate hydrochloride had an effect on normal growth patterns in children diagnosed as hyperactive. Subjects were assigned to one of three methylphenidate treatment groups by the amount of time (in years) they received medication. Length of treatment ranged from up to one year through three years. Using NCHS growth charts, measurement percentiles (height and weight) were compared to pre-treatment percentiles to determine effect of medication. Results indicated that the administration of methylphenidate had a significant growth suppressing effect on children, the effect was proportional across measurements i.e., height and weight, and pre-treatment height percentiles were lower than national averages. Further analysis of the data suggest a transient effect of growth suppression during long term administration of methylphenidate.

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