Academic Journal
Differential item functioning in the Cambridge Mental Disorders in the Elderly (CAMDEX) Depression Scale across middle age and late life
| Title: | Differential item functioning in the Cambridge Mental Disorders in the Elderly (CAMDEX) Depression Scale across middle age and late life |
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| Authors: | McGue, Matt, Sadler, Michael E, Estabrook, Ryne |
| Source: | McGue, M, Sadler, M E & Estabrook, R 2015, ' Differential Item Functioning in the Cambridge Mental Disorders in the Elderly (CAMDEX) Depression Scale Across Middle Age and Late Life ', Psychological Assessment, vol. 27, no. 4, pp. 1219-1233 . https://doi.org/10.1037/pas0000114 |
| Publisher Information: | American Psychological Association (APA), 2015. |
| Publication Year: | 2015 |
| Subject Terms: | Male, Aging, Psychiatric Status Rating Scales/statistics & numerical data, 03 medical and health sciences, 0302 clinical medicine, 0504 sociology, Depression/diagnosis, Models, 80 and over, Humans, Aging/psychology, 10. No inequality, Geriatric Assessment, Aged, Aged, 80 and over, Psychiatric Status Rating Scales, Models, Statistical, Depression, 05 social sciences, Age Factors, Reproducibility of Results, Statistical, Middle Aged, Health Surveys, 3. Good health, Cross-Sectional Studies, Female, Factor Analysis, Statistical, Factor Analysis |
| Description: | A long-standing and critical problem in the study of aging and depression is the comparability of measurement across age groups. While psychological measures of depression typically show increased incidence of symptoms with increasing age, rates of depression diagnosis do not show the same age trend. This analysis presents tests of differential item functioning on the depression section of the CAMDEX interview schedule, using factor analysis-derived affective and somatic subscales (McGue & Christensen, 1997). Results for the affective subscale show significant differences in item functioning in the majority of the affective items as a function of age (items "Happy Life," "Lonely," "Nervous" "Worthless," and "Future": χ6(2) = [30.193, 255.971] across items, all p < .0001). Analyses for the somatic subscale show differential item functioning is limited to a single item relating to coping (χ6(2) = 180.754, p < .0001). These results indicate that differences in depression symptoms across age groups are not entirely consistent with a unidimensional depression trait, and that the measurement structure of depression varies over the life span. |
| Document Type: | Article |
| Language: | English |
| ISSN: | 1939-134X 1040-3590 |
| DOI: | 10.1037/pas0000114 |
| Access URL: | https://pubmed.ncbi.nlm.nih.gov/25938337 https://www.scholars.northwestern.edu/en/publications/differential-item-functioning-in-the-cambridge-mental-disorders-i http://doi.apa.org/getdoi.cfm?doi=10.1037/pas0000114 https://www.ncbi.nlm.nih.gov/pubmed/25938337 https://psycnet.apa.org/record/2015-19625-001 http://europepmc.org/abstract/MED/25938337 https://experts.umn.edu/en/publications/differential-item-functioning-in-the-cambridge-mental-disorders-i-2 https://portal.findresearcher.sdu.dk/da/publications/80f1e00e-b44b-43f5-a652-4b65045be4ae https://doi.org/10.1037/pas0000114 https://portal.findresearcher.sdu.dk/da/publications/80f1e00e-b44b-43f5-a652-4b65045be4ae |
| Rights: | publisher-specific, author manuscript URL: http://www.apa.org/pubs/journals/resources/open-access.aspx |
| Accession Number: | edsair.doi.dedup.....0d7806e0129626413fabb95f91c4e833 |
| Database: | OpenAIRE |
| ISSN: | 1939134X 10403590 |
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| DOI: | 10.1037/pas0000114 |