The relationships between the length of the speech sample and the resulting disfluency data in 20 stuttering children who exhibited a wide range of disfluency levels were investigated. Specifically, the study examined whether the relative number of stuttering-like disfluencies (SLD) per 100 syllables, as well as the length of disfluencies (number…

Background: There will always be a place for stuttering treatments designed to eliminate or reduce stuttered speech. When those treatments are required, direct speech measures of treatment process and outcome are needed in clinical practice. Aims: Based on the contents of published clinical trials of such treatments, three "core" measures of…

The purpose of this study was to explore whether stuttering severity or therapy involvement had an effect on the attitudes that individuals who do not stutter reported towards people who stutter (PWS). Two hundred and sixty (260) university students participated in this study. Direct survey procedures consisting of a 25-item semantic differential…

Participants of stuttering treatment programs provide an opportunity to evaluate persons who stutter as they demonstrate varying levels of fluency. Identifying physiologic correlates of altered fluency levels may lead to insights about mechanisms of speech disfluency. This study examined respiratory, orofacial kinematic and acoustic measures in 35…

This study was intended to replicate and extend previous findings that (a) during fluent speech persons who stutter (PS) and those who do not (NS) differ in their vocal tract closing movements (L. Max, A. J. Caruso, & V. L. Gracco, 2003) and (b) ratios relating lip and tongue speed to jaw speed increase with stuttering severity (M. D. McClean & C.…

A procedure for subtyping individuals who stutter and its relationship to treatment outcome is explored. Twenty-five adult participants of the Comprehensive Stuttering Program (CSP) were classified according to: (1) stuttering severity and (2) severity of negative emotions and cognitions associated with their speech problem. Speech characteristics…

The purpose of this study was to investigate the relation between stuttering and a range of variables of possible relevance, with the main focus on neuromuscular reactivity, and anxiety. The explorative analysis also included temperament, biochemical variables, heredity, preonset lesions, and altered auditory feedback (AAF). An increased level of…

Background: Similar positive results (e.g. immediate decreases in stuttering frequency and a 60-80% recovery rate from stuttering) have been reported for numerous therapeutic protocols for treating childhood stuttering, many of which have been diametrically opposite in their orientations and implementations. For example, Johnson advocated indirect…

A study evaluated the language production of 12 children (ages 5-8) who continued stuttering for 36 months or more after onset, 10 who recovered 18-36 months post onset, and 10 who recovered within 18 months of onset of stuttering. The majority of the children performed in the average range on measures of language production. (Author/CR)

This study, involving 24 preschool children with stuttering problems, found no significant differences between subgroups based on stuttering severity and phonologic ability. Phonologic difficulties of the disfluent word, and the fluent word following it, did not contribute to fluency breakdown regardless of the children's stuttering severity or…

This article describes the Subjective Screening of Stuttering (SSS): research edition that is designed to quantify the selected self-reports of people who stutter (PWS) prior to, during, and following their treatment. The three areas screened by the SSS are perceived stuttering severity, the level of internal or external locus of control, and…

A study investigated frequency change and duration of the second formant (F2) transition in speech samples recorded close to stuttering onset in 10 preschoolers who stutter, 10 who recovered from stuttering, and 10 controls. Near stuttering onset, children whose stuttering persisted demonstrated significantly smaller frequency change than the…

This study investigated the comparative reliability of 2 stuttering measurement tools when used by experienced judges: percentage of syllables stuttered (%SS) and a 9-point severity scale (SEV). The study also investigated the degree to which scores on 1 tool predict scores on the other and the distributions of stuttering when measured by these…

Nineteen adults who stutter participated in a 3-week intensive stuttering modification treatment program (the Successful Stuttering Management Program [SSMP]). A series of 14 fluency and affective-based measures were assessed before treatment, immediately after treatment, and 6 months after treatment. Measures included stuttering frequency; the…

An examination of the extent to which scores on the Stuttering Severity Instrument (SSI) for Children and Adults, Third Edition, accurately reflect 10 judges' observations of stuttering behaviors found that SSI scores obscured the wide range of judges' raw counts and did not accurately reflect the observational data from which they were derived.…