Thesis (Ph. D.)--University of Canterbury, 2006. / Typescript (photocopy). "June 2006." Includes bibliographical references (leaves 211-235). Also available via the World Wide Web.

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Stuttering has been a complex problem ever since the early history of man. It has been found to exist in some cultures to a greater extent than in others. In certain primitive cultures the phenomenon of stuttering was reported to be unknown, yet when members of these cultures were influenced by western environments some incidence of stuttering occurred among them. The influence of the environment therefore cannot be disregarded when considering causes of stuttering. Although much research has been done by speech pathologists among various world cultures they have by no means completed their task for there are many groups, living in a variety of societies, which are yet to be studied. The present rudimentary investigation into stuttering among Indians living in Durban may be regarded as a contribution to the knowledge that has already been accumulated. / Thesis (M.A.)-University of Natal, Durban, 1971.

Researchers are seeking more information . on how and why language disorders tend to run in families, particularly siblings of language disordered children. The purpose of this study was to examine the prevalence of language and related disorders in the siblings of two groups of children: those with slow expressive language development (SELD) and those with a normal language history. This study sought to answer the following questions: 1) Is there a significant difference in prevalence of language problems in two groups of children: those with SELD and those with a normal language history?, and 2) Is there a greater probability of language problems in the siblings of children in the SELD group who have receptive/expressive language disorders when compared to those SELD children with pure expressive language deficits or to those with a normal language history? Subjects were 45 7-and 8-year old children participating in a longitudinal study at Portland State University. The children were divided into two groups, normal and SELD, based on test scores administered at intake to the original study. In order to look at the effect of a receptive component on heritability of language disorders, the SELD group was subgrouped into pure expressive language disorders and receptive/expressive language disorders based on tests administered at intake. A family history questionnaire was the method of data collection, asking parents to report on ten areas of language and related disorders in the siblings of subjects. Results of one-sided z-tests and a chi-square test were computed and consistently found a highly significant difference between groups, with families of SELD subjects more likely to report a history of language problems over the normal group. These results are consistent with previous research in showing the heritability of language disorders. Results may also indicate that a receptive language component is associated with heritability of specific language disorders among children.

The process of differentially diagnosing a child who is experiencing temporary normal disfluency from one who is beginning to stutter could be made objective by the establishment of normative data on fluency development. To date, there are no standardized norms on the development of fluency in children. Current investigations have contributed greatly to expectations of certain types and amounts of disfluencies in preschool-age children. Most of the research, however, has focused on observing children at discrete age levels from 2- to 7-years-of-age. Only one longitudinal study to date has been reported. Additional longitudinal data of preschoolaged children would benefit the establishment of normative data. Observing the same children over time helps to expose the subtleties that could be missed when looking only at specific age levels. The present study sought to contribute to the investigation of normal childhood disfluency by comparing various types and amounts of disf luencies in 44- to 49-month-old-children to the results of the same group of children when they were 30- to 35-months-of-age.

Speech-language pathologists are constantly trying to use the most efficient and effective assessments to obtain information about the phonetic inventory, speech sound errors, and phonological error patterns of children who are suspected of having a speech sound disorder. These assessments may involve a standardized measure of single words and/or sentences and a non standardized measure, such as a spontaneous speech sample. While research has shown both of these types of assessments to give clinicians information about a child's speech production abilities, the use of delayed imitation tasks, either words or sentences, has not been a widely studied topic and has produced conflicting results when researched. The purpose of the present study was to examine speech sound production abilities in children with a speech sound disorder in a single-word task, an imitated sentence task, and spontaneous speech sample to compare their results of speech sound errors, phonological error patterns, and time administration. The study used the Phonological and Articulatory Bilingual Assessment - English version (PABA-E, Gildersleeve-Neumann , 2008), a formal assessment for identifying children who may have a speech sound disorder. Three male children, between the ages of 4;0 and 5;4 (years;months), participated in this study. All participants were being treated by a speech-language pathologist for a diagnosed speech sound disorder and had hearing within normal limits. The results of the study showed that the majority of participants produced the highest number of speech sounds targeted within the imitated sentence task. Participants attempted and produced the least amount of speech sounds on their spontaneous speech sample. The assessment with the highest percentage of accurately produced consonants was the imitated sentence task. The majority of participants produced a higher number of error patterns in their single-word and imitated sentence task. In terms of efficiency and effectiveness, the imitated sentence task took the least amount of time to administer and transcribe.

Thesis (M.S.)--Missouri State University, 2009. / "May 2009." Includes bibliographical references (leaves 21-24). Also available online.