Investigating the psychometric properties of a South African adaptation of the Boston Naming Test : evidence for diagnostic validity from a memory clinic population

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dc.contributor.advisorThomas, Kevinen_ZA
dc.contributor.authorBaerecke, Laurenen_ZA
dc.date.accessioned2014-12-25T15:57:19Z
dc.date.available2014-12-25T15:57:19Z
dc.date.issued2013en_ZA
dc.descriptionIncludes abstract.en_ZA
dc.description.abstractThe Boston Naming Test (BNT) is a popular confrontation naming test that is frequently used in the detection of naming deficits in Alzheimer's disease (AD). However, the test may not be appropriate when used outside of North America due to the influence of varying word frequency and familiarity between different cultures and languages. This study investigated the diagnostic validity of a South African 15-item adaption of the BNT (the BNT-SA-SF) in a Cape Town memory clinic population of patients with dementia and healthy, community-dwelling control participants. Between-groups comparisons, receiver operating characteristic (ROC) analyses, and other diagnostic efficiency statistics were used to assess the test's discriminative capacity between patients with AD (n = 46), patients with other types of dementia (n = 23), and controls (n = 51), matched on key demographic variables. The AD group performed worse than patients with other types of dementia and controls on the BNT-SA-SF, and patients with other types of dementia scored more poorly than controls. The test showed the most significant discriminative capacity between patients with AD and controls, however. A general linear model examining the effects of socio-demographic variables on test performance found that BNT-SA-SF performance was not significantly affected by the socio-demographic characteristics of participants, including age, education, language, or socio-economic status, with the exception that men appear to achieve higher scores than women. Further, an item analysis identified a number of problematic items and suggestions are made concerning how to deal with these in future studies. Preliminary normative data stratified by sex and education are presented. Results support the clinical utility of the BNT-SA-SF as a screening test to aid in the diagnosis of AD from normal aging with older adults in South Africa. This study is a valuable step forward in the ongoing attempt to provide culturally appropriate and valid neuropsychological tests and norms for clinical and research purposes in South Africa. Future studies should examine the functioning of the test in larger samples, representative of the other major population and language groups in South Africa.en_ZA
dc.identifier.apacitationBaerecke, L. (2013). <i>Investigating the psychometric properties of a South African adaptation of the Boston Naming Test : evidence for diagnostic validity from a memory clinic population</i>. (Thesis). University of Cape Town ,Faculty of Humanities ,Department of Psychology. Retrieved from http://hdl.handle.net/11427/10019en_ZA
dc.identifier.chicagocitationBaerecke, Lauren. <i>"Investigating the psychometric properties of a South African adaptation of the Boston Naming Test : evidence for diagnostic validity from a memory clinic population."</i> Thesis., University of Cape Town ,Faculty of Humanities ,Department of Psychology, 2013. http://hdl.handle.net/11427/10019en_ZA
dc.identifier.citationBaerecke, L. 2013. Investigating the psychometric properties of a South African adaptation of the Boston Naming Test : evidence for diagnostic validity from a memory clinic population. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Baerecke, Lauren AB - The Boston Naming Test (BNT) is a popular confrontation naming test that is frequently used in the detection of naming deficits in Alzheimer's disease (AD). However, the test may not be appropriate when used outside of North America due to the influence of varying word frequency and familiarity between different cultures and languages. This study investigated the diagnostic validity of a South African 15-item adaption of the BNT (the BNT-SA-SF) in a Cape Town memory clinic population of patients with dementia and healthy, community-dwelling control participants. Between-groups comparisons, receiver operating characteristic (ROC) analyses, and other diagnostic efficiency statistics were used to assess the test's discriminative capacity between patients with AD (n = 46), patients with other types of dementia (n = 23), and controls (n = 51), matched on key demographic variables. The AD group performed worse than patients with other types of dementia and controls on the BNT-SA-SF, and patients with other types of dementia scored more poorly than controls. The test showed the most significant discriminative capacity between patients with AD and controls, however. A general linear model examining the effects of socio-demographic variables on test performance found that BNT-SA-SF performance was not significantly affected by the socio-demographic characteristics of participants, including age, education, language, or socio-economic status, with the exception that men appear to achieve higher scores than women. Further, an item analysis identified a number of problematic items and suggestions are made concerning how to deal with these in future studies. Preliminary normative data stratified by sex and education are presented. Results support the clinical utility of the BNT-SA-SF as a screening test to aid in the diagnosis of AD from normal aging with older adults in South Africa. This study is a valuable step forward in the ongoing attempt to provide culturally appropriate and valid neuropsychological tests and norms for clinical and research purposes in South Africa. Future studies should examine the functioning of the test in larger samples, representative of the other major population and language groups in South Africa. DA - 2013 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2013 T1 - Investigating the psychometric properties of a South African adaptation of the Boston Naming Test : evidence for diagnostic validity from a memory clinic population TI - Investigating the psychometric properties of a South African adaptation of the Boston Naming Test : evidence for diagnostic validity from a memory clinic population UR - http://hdl.handle.net/11427/10019 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/10019
dc.identifier.vancouvercitationBaerecke L. Investigating the psychometric properties of a South African adaptation of the Boston Naming Test : evidence for diagnostic validity from a memory clinic population. [Thesis]. University of Cape Town ,Faculty of Humanities ,Department of Psychology, 2013 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/10019en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Psychologyen_ZA
dc.publisher.facultyFaculty of Humanitiesen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherPsychological Researchen_ZA
dc.titleInvestigating the psychometric properties of a South African adaptation of the Boston Naming Test : evidence for diagnostic validity from a memory clinic populationen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMAen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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