Development and evaluation of the New Zealand children’s-build-a-sentence test (NZ Ch-BAS).
| dc.contributor.author | Rogers, Emma Jyoti | en |
| dc.date.accessioned | 2014-07-27T23:52:51Z | |
| dc.date.available | 2014-07-27T23:52:51Z | |
| dc.date.issued | 2012 | en |
| dc.description.abstract | Objective: The purpose of this current study was to develop an audiovisual speech perception test for New Zealand English (NZE) speaking children by adapting the American version of the Children’s-Build-A-Sentence (Ch-BAS) test. Three hypotheses were formulated for this study. First, it was predicted that the New Zealand version of the Ch-BAS test would show list equivalency. A second hypothesis was that all children would perform significantly better on the auditory-visual (AV) condition of the test in comparison to the vision-only (V-only condition). A third hypothesis was that older children would perform significantly better than younger children on both test conditions. Design: The American version of the Children’s-Build-A-Sentence test was adapted for use with NZ children and an audiovisual recording was made of an adult NZE speaker saying the sentence stimuli. This was then edited into a picture response matrix format to make up the NZ Ch-BAS test which is comprised of three lists made up of mono, bi, and tri-syllabic words. Equal numbers of sentences were allocated to the three test conditions: auditory-only (A-only), V-only, and AV conditions. The NZ Ch-BAS test was then administered to 30 normal hearing (NH) NZE-speaking children aged between 7-11 years with equal numbers (n=6) in each age group. All testing was conducted in the presence of multi-talker babble noise, set individually for each child to obtain approximately equivalent performance for the A-only condition. Results: Results revealed that the NZ Ch-BAS test lists were equivalent for both the V-only and AV test conditions when testing NH children. A significant age effect was also found, where older children showed superior speech reading performance in comparison to younger children. A stronger age effect was seen for the V-only condition in comparison to the AV condition. All children performed significantly better on the AV condition in comparison to the V-only condition. Conclusions: The three Ch-BAS test lists demonstrate list equivalency and therefore can be used to develop a reliable test for NZ-English speaking children. As anticipated, there was an age effect in regard to speech reading performance; however this effect was only found for the V-only condition. All children performed significantly better on the AV condition in comparison to the V-only condition. A number of possible explanations for superior performance are provided and clinical uses for the NZ Ch-BAS test are discussed. | en |
| dc.identifier.uri | http://hdl.handle.net/10092/9433 | |
| dc.identifier.uri | http://dx.doi.org/10.26021/8408 | |
| dc.language.iso | en | |
| dc.publisher | University of Canterbury. Communication Disorders | en |
| dc.relation.isreferencedby | NZCU | en |
| dc.rights | Copyright Emma Jyoti Rogers | en |
| dc.rights.uri | https://canterbury.libguides.com/rights/theses | en |
| dc.subject | speech perception | en |
| dc.subject | hearing impairment | en |
| dc.subject | children | en |
| dc.subject | New Zealand | en |
| dc.title | Development and evaluation of the New Zealand children’s-build-a-sentence test (NZ Ch-BAS). | en |
| dc.type | Theses / Dissertations | |
| thesis.degree.discipline | Audiology | en |
| thesis.degree.grantor | University of Canterbury | en |
| thesis.degree.level | Masters | en |
| thesis.degree.name | Master of Audiology | en |
| uc.bibnumber | 2035531 | en |
| uc.college | Faculty of Science | en |