This article is only available in the PDF format. Download the PDF to view the article, as well as its associated figures and tables.
Typographical Error.
In the article "Efficacy of Methylphenidate for Attention-Deficit Hyperactivity Disorder in Children With Tic Disorder," which appeared in the June 1995 issue of the Archives, there was a typographical error in one of the F values. On page 452, the decimal point in the last F value provided in the "Parent Ratings" section was erroneously typeset as a hyphen. The sentence should have read, "A linear function provided a good fit to the data (F[1,29]=10.66, P=.003)." The Archives apologizes for its error.