Concomitant speech and language disorders in stuttering children: a critique of the literature.

This article presents a critical review of the literature concerning concomitant speech and language disorders in stuttering children. Studies published since the 1920s that examined language onset and disorders of articulation, syntax and morphology, semantics, and word finding are analyzed. Collectively, the studies present a mixed impression of stutterers, not only because of methodological variations, but also because of the tremendous variability that exists among children who stutter. Although the evidence is not convincing that stutterers as a group are more likely than nonstutterers to have deficits in any of these areas, it is clear that some stutterers do have concomitant speech and language problems that may bear some relationship to their stuttering. The message from this body of research is that individual differences among stuttering children should not be ignored during clinical or research activities.