Various measures of severity of stuttering are available and are used both clinically and experimentally. Information concerning the relationships among these various measures thus should be useful in planning effective therapy or in designing experiments. In a previous study Sherman and Trotter (4) evaluated the relationship between two measures of the severity of stuttering. One measure was the mean scale value of severity of individual moments of stuttering derived from listeners\u27 responses; the other measure was frequency of stuttering. Measures were taken on tape-recorded readings of a 500-word passage. The obtained estimate of the strength of relationship was a Pearson r of .61
