The clinical sample (n = 83) included patients with human immunodeficiency virus (HIV) and a comorbid disorder, either psychiatric (n = 70) or neurocognitive (n = 13). The control sample (n = 89) included healthy South African adults who speak English as a second or third language and who have been educated in public schools. Assessment of an older adults cognitive function is best achieved when it is done routinely, systematically and thoroughly. All participants completed the English MoCA version 8.1. This study analysed secondary quantitative data, utilising a cross-sectional, between-subjects design. Therefore, this study aimed to investigate (1) the influence of demographic variables (age, years of education, and gender) on total MoCA scores (2) the internal consistency reliability of the test and (3) the discriminant validity of the total MoCA score. However, its psychometric properties have not been sufficiently studied in the South African context. Abstract : The Montreal Cognitive Assessment (MoCA) is widely used to screen for cognitive impairment and has shown a good capacity to identify cognitive impairment.
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