Portland State University. Department of Speech and Hearing Sciences
Date of Award
Master of Science (M.S.) in Speech and Hearing Sciences
Speech and Hearing Sciences
1 online resource (vi, 80 p.) : ill. (some col.)
Bilingualism in children, Speech disorders in children -- Evaluation, Preschool children -- Language -- Study and teaching -- Bilingual method
Many bilingual Spanish-English preschool aged children are impacted by speech sound disorders; and research has shown that bilingual speech sound systems develop differently than monolinguals'. Research has also shown that, for monolingual English and Spanish speakers, parent reports can be a valid tool for identification and single-word assessments can effectively diagnose speech disorder, yet little, if any, normative data or information about the validity of parent reports as an identification tool exists for bilingual Spanish-English speakers. The purpose of the present study was to create bilingual speech normative data for English single-word assessment scores for percent consonants correct (PCC), percent vowels correct (PVC), and the index of phonetic complexity (IPC). It also sought to determine correlations of speech scores and parent reports, which was done as an extension of Stertzbach's 2005 study with monolingual Spanish speakers. Fifty-six bilingual Spanish-English 4-year-olds were administered a single-word assessment in English and normative data was generated from the PCC, PVC, and IPC scores. That normative data was correlated with Likert values from the parent surveys to establish the validity of the report as an identification tool, and finally, the disordered scores (as determined by the normative data) were explored in relation to previous suspicion or diagnosis of disorder. The normative data showed 89% of speech scores falling within the typical range for both PCC and PVC and 93% for IPC. Pearson coefficients were computed by regression analysis and parent reports were deemed a valid tool for identification based on statistically significant correlations (at the .05 level) for 6 of 10 questions. Previous suspicions of disorder, based on parent report or examiner questionnaire, were 87.5% and 91% accurate, respectively, while current diagnosis, based on the presence of an existing Individualized Family Service Plan (IFSP), was 93% accurate. The results were consistent with previous research showing the prevalence of speech disorder as well as the validity of the parent report.
Powers, Brooke Leann, "Bilingual Spanish-English Speaking 4-Year-Old-Children: English Normative Data and Correlations with Parent Reports" (2010). Dissertations and Theses. Paper 337.