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Of a clinical population of 169 adult and adolescent stutterers, 112 members (66%) reported a family history of stuttering. Only 3 (2.4%) of these reported any birth or early childhood factors or events that were thought to be associated with stuttering onset or that potentially might have precipitated stuttering. In contrast, 21 (37%) of the 57 members(More)
Handedness testing carried out in the course of clinical treatment and research with stutterers has provided no support for an association between left-handedness and stuttering. Stutterers had neither a greater incidence of left-handedness than is usually reported for the general population, nor demonstrated less consistency than fluent speakers in hand(More)
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