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J Commun Disord. 2019 Jan 25;78:57-68. doi: 10.1016/j.jcomdis.2019.01.004. [Epub ahead of print]

Differences in the relation between temperament and vocabulary based on children's stuttering trajectories.

Author information

1
Department of Hearing and Speech Sciences, Vanderbilt University, 1215 21st Avenue South, Suite 8310 MCE South Tower, Nashville, TN 37232-8242, United States. Electronic address: cara.m.singer@vanderbilt.edu.
2
Department of Psychology and Human Development, Peabody College, Vanderbilt University, 230 Appleton Place, Nashville, TN 37203-5721, United States.
3
Department of Hearing and Speech Sciences, Vanderbilt University, 1215 21st Avenue South, Suite 8310 MCE South Tower, Nashville, TN 37232-8242, United States.

Abstract

PURPOSE:

The purpose of this study was to assess the relation between temperament and vocabulary development for children who stutter and persist, children who stutter and recover and children who do not stutter.

METHODS:

Participants, aged 3;0-4;11 at the start of the study, were followed for two years. They were classified as persisting (n = 10), recovered (n = 26), and non-stuttering (n = 24) based on multiple assessments of stuttering spaced across study participation. Groups were balanced for age and gender ratios. At each visit, participants completed the Peabody Picture Vocabulary Test, 4th edition, and the Expressive Vocabulary Test, 2nd edition; caregivers completed the Children's Behavior Questionnaire.

RESULTS:

For both persisting and recovered groups, higher negative emotionality was associated with lower receptive vocabulary. These associations were both significantly more negative than the non-stuttering group's association.

CONCLUSION:

These findings suggest that receptive vocabulary development is differentially linked to temperament based on a child's stuttering status. As others have speculated (Conture & Walden, 2012), it appears as though there are salient associations between temperament, speech-language development, and childhood stuttering.

KEYWORDS:

Children; Chronicity; Longitudinal; Preschool; Stuttering; Temperament; Vocabulary

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