Authors: Menzies RG, O'Brian S, Onslow M, Packman A, St Clare T, Block S
Title: An Experimental Clinical Trial of a Cognitive-Behavior Therapy Package for Chronic Stuttering
Source: Journal of Speech, Language, and Hearing Research 2008 51(6): 1451-1464
Year: 2008
Research Design: Randomised Controlled Trial
Rating Score: 05/10
This rating is confirmed
Eligibility specified - Y
Random allocation - Y
Concealed allocation - Y
Baseline comparability - N
Blind subjects - N
Blind therapists - N
Blind assessors - Y
Adequate follow-up - N
Intention-to-treat analysis - N
Between-group comparisons - Y
Point estimates and variability - Y

PURPOSE: The aims of the present study were to ( a) examine the rate of social phobia among adults who stutter, (b) study the effects of speech restructuring treatment on social anxiety, and ( c) study the effects on anxiety and stuttering of a cognitive-behavior therapy (CBT) package for social anxiety. METHODS: Thirty-two adults with chronic stuttering were randomly allocated to receive either speech restructuring following a CBT package for social anxiety or speech restructuring alone. Data were obtained on a variety of speech and psychological measures at pre-treatment, post-CBT, post-speech restructuring, and 12 months follow-up. RESULTS: Sixty percent of our cohort were diagnosed with social phobia. Speech restructuring treatment alone had no impact on the social phobia of our cohort at 12 months follow- up. At follow- up, participants who had received CBT showed no social phobia and greater improvements than control participants on a range of psychological measures of anxiety and avoidance. However, the CBT package made no difference to the speech outcomes of those with social phobia. CONCLUSION: The CBT treatment was associated with significant and sustained improvements in psychological functioning but did not improve fluency.

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