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ERIC Number: EJ961945
Record Type: Journal
Publication Date: 2010
Pages: 17
Abstractor: As Provided
Reference Count: 40
ISSN: ISSN-0269-9206
A Multi-Dimensional Approach to Gradient Change in Phonological Acquisition: A Case Study of Disordered Speech Development
Glaspey, Amy M.; MacLeod, Andrea A. N.
Clinical Linguistics & Phonetics, v24 n4-5 p283-299 2010
The purpose of the current study is to document phonological change from a multidimensional perspective for a 3-year-old boy with phonological disorder by comparing three measures: (1) accuracy of consonant productions, (2) dynamic assessment, and (3) acoustic analysis. The methods included collecting a sample of the targets /s, [image omitted], t[image omitted], and d[image omitted]/ produced in single words and repeated over time. The samples were analysed using phonetic transcription and acoustic measures of duration, spectral mean, and spectral variance. A dynamic assessment was administered that showed change in response to cues and linguistic environments using a 15-point scale. The results from the three measures were compared for gradient change and evidence of covert contrasts. In conclusion, gradient change was illustrated across the three measures and contrasts were evident in the child's phonological system. Acoustic measures were most sensitive, followed by dynamic assessment; however, accuracy scores based on phonetic transcription showed little to no change for some targets. (Contains 1 table and 5 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Assessments and Surveys: Peabody Picture Vocabulary Test; Preschool Language Scale