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ORIGINAL ARTICLE
Year : 2019  |  Volume : 33  |  Issue : 1  |  Page : 23-31

Cross-linguistic generalization of fluency to untreated language in bilingual adults who stutter


Department of Speech-Language Sciences, All India Institute of Speech and Hearing, Mysore, Karnataka, India

Correspondence Address:
Santosh Maruthy
Department of Speech-Language Sciences, All India Institute of Speech and Hearing, Mysore - 570 006, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jisha.JISHA_29_18

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Introduction: Majority of the studies in bilingual persons who stutter have reported that stuttering frequency is greater in nondominant or less proficient language. However, there is limited research concerning the efficacy of speech therapy in bilingual adults who stutter (BAWS). The current study aimed at investigating whether there is a generalization of fluency to a nontreated language in BAWS. Materials and Methods: Five BAWS participated in the study. The efficacy of prolonged-speech therapy was evaluated using a modified single-subject ABA withdrawal design. In all the five participants, nonprogrammed prolonged-speech therapy was provided in their first language, and fluency was monitored in both the first and second languages. Mean and standard deviation were derived for a percentage of syllables stuttered. Relative mean differences and effect sizes (Cohen's d) were derived for each participant and language. Results: All the five participants showed a significant reduction in %SS in the withdrawal condition when compared to the pretreatment baseline condition. Most importantly, there was a significant generalization of achieved fluency to untreated language in all the five participants. However, the amount of treatment generalization to nontreated language varied across participants. Conclusions: The present results highlight that there was a significant cross-linguistic generalization of achieved fluency to the nontreated language in all the five bilingual individuals using the nonprogrammed prolonged-speech therapy.


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