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Validation of the CAT rapid: a smartphone screening tool for HIV-associated neurocognitive disorders in South Africa
Existing screening tools are not suitable for the detection of HIV-associated neurocognitive disorders (HAND) in South Africa. Study 1 of the current thesis aimed to establish construct validity of a new screening tool, the Cognitive Assessment Tool-Rapid(CAT-Rapid), in a sample of cognitively healt...
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| Format: | Thesis |
| Language: | Eng |
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Department of Psychology
2015
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| _version_ | 1867613252035280896 |
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| access_status_str | Open Access |
| author | Witten, Jade Abigail |
| author2 | Thomas, Kevin |
| author_browse | Thomas, Kevin Witten, Jade Abigail |
| author_facet | Thomas, Kevin Witten, Jade Abigail |
| author_sort | Witten, Jade Abigail |
| collection | Thesis |
| description | Existing screening tools are not suitable for the detection of HIV-associated neurocognitive disorders (HAND) in South Africa. Study 1 of the current thesis aimed to establish construct validity of a new screening tool, the Cognitive Assessment Tool-Rapid(CAT-Rapid), in a sample of cognitively healthy South African undergraduates (n = 122).Study 2 investigated the tool¡¯s diagnostic validity in a sample of HIV-positive adult South Africans (n = 89). In Study 1 and Study 2, correlational analyses characterizing the associations between CAT-Rapid subtests and analogous standardized neuropsychological tests sought to establish construct validity. In Study 2, ROC curves, and estimates of sensitivity and specificity values, characterized the CAT-Rapid¡¯s diagnostic validity. Results from Study 1 demonstrated adequate construct validity for the CAT-Rapid in the cognitively healthy sample. Results from Study 2 did not demonstrate construct validity of the tool in the clinical sample. Regarding diagnostic properties, at the recommended cut off score ¡Ü 10, the CAT-Rapid did not demonstrate optimal sensitivity and specificity in the detection of HAND. Future research should investigate how the CAT-Rapid compares to paper-and-pencil screening tests that have demonstrated promising results in studies emerging from the global north. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/13771 |
| institution | University of Cape Town (South Africa) |
| language | Eng |
| last_indexed | 2026-06-10T12:33:10.259Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Department of Psychology |
| publisherStr | Department of Psychology |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/13771 Validation of the CAT rapid: a smartphone screening tool for HIV-associated neurocognitive disorders in South Africa Witten, Jade Abigail Thomas, Kevin Joska, John CAT screening tools Existing screening tools are not suitable for the detection of HIV-associated neurocognitive disorders (HAND) in South Africa. Study 1 of the current thesis aimed to establish construct validity of a new screening tool, the Cognitive Assessment Tool-Rapid(CAT-Rapid), in a sample of cognitively healthy South African undergraduates (n = 122).Study 2 investigated the tool¡¯s diagnostic validity in a sample of HIV-positive adult South Africans (n = 89). In Study 1 and Study 2, correlational analyses characterizing the associations between CAT-Rapid subtests and analogous standardized neuropsychological tests sought to establish construct validity. In Study 2, ROC curves, and estimates of sensitivity and specificity values, characterized the CAT-Rapid¡¯s diagnostic validity. Results from Study 1 demonstrated adequate construct validity for the CAT-Rapid in the cognitively healthy sample. Results from Study 2 did not demonstrate construct validity of the tool in the clinical sample. Regarding diagnostic properties, at the recommended cut off score ¡Ü 10, the CAT-Rapid did not demonstrate optimal sensitivity and specificity in the detection of HAND. Future research should investigate how the CAT-Rapid compares to paper-and-pencil screening tests that have demonstrated promising results in studies emerging from the global north. 2015-08-15T05:33:40Z 2015-08-15T05:33:40Z 2015 Master Thesis Masters MA http://hdl.handle.net/11427/13771 Eng application/pdf Department of Psychology Faculty of Humanities University of Cape Town |
| spellingShingle | CAT screening tools Witten, Jade Abigail Validation of the CAT rapid: a smartphone screening tool for HIV-associated neurocognitive disorders in South Africa |
| thesis_degree_str | Master's |
| title | Validation of the CAT rapid: a smartphone screening tool for HIV-associated neurocognitive disorders in South Africa |
| title_full | Validation of the CAT rapid: a smartphone screening tool for HIV-associated neurocognitive disorders in South Africa |
| title_fullStr | Validation of the CAT rapid: a smartphone screening tool for HIV-associated neurocognitive disorders in South Africa |
| title_full_unstemmed | Validation of the CAT rapid: a smartphone screening tool for HIV-associated neurocognitive disorders in South Africa |
| title_short | Validation of the CAT rapid: a smartphone screening tool for HIV-associated neurocognitive disorders in South Africa |
| title_sort | validation of the cat rapid a smartphone screening tool for hiv associated neurocognitive disorders in south africa |
| topic | CAT screening tools |
| url | http://hdl.handle.net/11427/13771 |
| work_keys_str_mv | AT wittenjadeabigail validationofthecatrapidasmartphonescreeningtoolforhivassociatedneurocognitivedisordersinsouthafrica |