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Centre for Policy on Ageing | |
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| An analysis of test bias and differential item functioning due to race on the Mattis Dementia Rating Scale | | Author(s) | John L Woodard, Alexander P Auchus, Robert E Godsall |
| Journal title | The Journals of Gerontology Series B: Psychological sciences and social sciences, vol 53B, no 6, November 1998 |
| Pages | pp P370-374 |
| Keywords | Dementia ; Measurement ; Black people ; White people ; Evaluation ; United States of America. |
| Annotation | The Mattis Dementia Rating Scale (MDRS) is a commonly used cognitive measure designed to assess the course of decline in progressive dementias. However, little information is available about possible systematic racial bias on the items presented in this test. Race as a potential source of test bias was investigated, along with differential item functioning in 40 pairs of African American and Caucasian dementia patients, matched for age, education and gender. Principal component analysis revealed similar patterns and magnitudes across component loadings for each racial group, indicating no clear evidence of test bias on account of race. Results of an item analysis of the MDRS revealed differential item functioning across groups on only 4 of 36 items; these could be be dropped to produce a modified MDRS that may be less sensitive to cultural factors. Given the absence of test bias because of race, the observed racial differences on the total MDRS score are most likely associated with group differences in dementia severity. (RH). |
| Accession Number | CPA-990304005 A |
| Classmark | EA: 3R: TKE: TKA: 4C: 7T |
Data © Centre for Policy on Ageing |
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| ...from the Ageinfo database published by Centre for Policy on Ageing. |
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