Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jclinepi.2006.07.012
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dc.titleItem response bias was present in instrumental activity of daily living scale in Asian older adults
dc.contributor.authorNiti, M.
dc.contributor.authorNg, T.-P.
dc.contributor.authorChiam, P.-C.
dc.contributor.authorKua, E.-H.
dc.date.accessioned2011-07-18T11:01:38Z
dc.date.available2011-07-18T11:01:38Z
dc.date.issued2007
dc.identifier.citationNiti, M., Ng, T.-P., Chiam, P.-C., Kua, E.-H. (2007). Item response bias was present in instrumental activity of daily living scale in Asian older adults. Journal of Clinical Epidemiology 60 (4) : 366-374. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jclinepi.2006.07.012
dc.identifier.issn08954356
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/24123
dc.description.abstractObjective: Item response bias (also called differential item functioning, DIF) in Instrumental Activities of Daily Living (IADL) occurs when members of different groups possessing the same disability level do not have the same probability of responding positively for a given item(s). This study aimed to identify the extent of DIF by gender, age, ethnicity, and dementia groups in IADL estimates in Asian (Chinese, Malays, and Indian) elderly subjects. Methods: Data of 1,072 noninstitutionalized elderly subjects were analyzed using Multiple-Indicator Multiple-Cause (MIMIC) latent variable modeling. Results: Given the same functional level, older elderly were less likely to report needing help with preparing meals; men were more likely to report needing help with preparing meals, doing laundry, and taking medication; Malays and demented elderly were more likely to report needing help with using the telephone. The impact of DIF on group differences in cognitive IADL was highest for ethnicity (58%), followed by gender (50%), and dementia (23%); whereas 92% and 5% of group differences in physical IADL were for gender and age, respectively. Conclusion: Item-response bias in IADL scale by gender, age, ethnicity, and dementia should be considered in direct comparisons of disability status among population groups. © 2007 Elsevier Inc. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.jclinepi.2006.07.012
dc.sourceScopus
dc.subjectBias
dc.subjectDifferential item functioning
dc.subjectElderly
dc.subjectFunctional disability
dc.subjectInstrumental activities of daily living
dc.subjectLatent variable model
dc.typeArticle
dc.contributor.departmentPSYCHOLOGICAL MEDICINE
dc.description.doi10.1016/j.jclinepi.2006.07.012
dc.description.sourcetitleJournal of Clinical Epidemiology
dc.description.volume60
dc.description.issue4
dc.description.page366-374
dc.identifier.isiut000245094200009
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