The Relationship Between Frequency and Duration of Moments of Stuttering

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Abstract
19 [male][male] and 1 [female] stutterers, ranging in age from 14 yrs., 6 months to 33 yrs., 6 months, with an av. of 21 yrs., 1 month, read a 1000-word, phonetically edited passage under carefully controlled conditions. As the subjects read, the duration of each stuttered moment was recorded on a tape by electro-magnetic pens attached to noiseless signal keys manned by 2 observers working independently. On a basis of a low but positive relationship between frequency and duration of moments of stuttering, it is concluded that both frequency and duration of moments of stuttering are to be regarded as measures of severity or amt. of stuttering, but neither is a complete measure since the 2 do not consistently correlate highly. Frequency alone or duration alone cannot be employed as a measure of the amt. or severity of stuttering. The severity of stuttering immediately following any one moment of stuttering cannot be predicted from the duration of or severity of the preceding moment of stuttering. The authors caution that any conclusions drawn must be evaluated in terms of the fact that the stuttering was measured in a reading situation only.

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