Barthel Index of activities of daily living: item response theory analysis of ratings for long-term care residents

Nursing Research
Wen LiuBarbara Resnick

Abstract

The Barthel Index (BI) is a frequently used measure of independence in the activities of daily living (ADLs). Item functioning of various versions of the BI have been examined using Rasch analysis. Item response theory (IRT) models for ordered polytomous responses may provide more insight into item functioning across levels of independence in ADLs. To compare the fit and appropriateness of the one-parameter logistic model (1PL), the partial credit model (PCM), and the extension of the generalized partial credit model implemented in ConQuest (GPCM-CQ) for the 15-item BI. This article is a secondary analysis of baseline BI data obtained from four randomized controlled trials for 788 residents from multiple long-term care facilities. Parameters of three different IRT-based models (1PL Rasch model, PCM, and GPCM-CQ) were estimated. Fit of items and response vectors was assessed. Overall fit was compared across the three models. Item difficulties were similar for all three models. Most of the 15 items were located at a moderate level of functional independence. In all three models, "don brace" was the easiest ADL but had poor discrimination; "climbing stairs" was the most difficult ADL. Multiple items showed misfit in both 1PL and P...Continue Reading

References

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Citations

Jul 1, 2015·Worldviews on Evidence-based Nursing·Wen LiuBarbara Resnick
Jul 10, 2019·Special Care in Dentistry : Official Publication of the American Association of Hospital Dentists, the Academy of Dentistry for the Handicapped, and the American Society for Geriatric Dentistry·Wen LiuXi Chen
Jul 10, 2018·Rehabilitation Nursing : the Official Journal of the Association of Rehabilitation Nurses·Sonia Jiménez MolaJesús Seco Calvo
Sep 14, 2019·International Journal of Preventive Medicine·Sakar HormoziHoman Saghebi
Jun 1, 2017·Hong Kong Journal of Occupational Therapy : HKJOT·Ickpyo HongHee-Soon Woo
Mar 1, 2019·Revista de salud pública·Manuel Gardea-ReséndezAndrés Barragán-Rodríguez
Jan 26, 2021·Oxidative Medicine and Cellular Longevity·Mateusz MaciejczykKarolina Gerreth
Apr 21, 2021·Journal of Nursing Scholarship : an Official Publication of Sigma Theta Tau International Honor Society of Nursing·Ana María Porcel-GálvezSergio Barrientos-Trigo
Aug 27, 2021·Scientific Reports·Mateusz MaciejczykKarolina Gerreth

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