Differences in the relation between temperament and vocabulary based on children’s stuttering trajectories
2019
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.
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