Psychometric properties of the International Wellbeing Index in community-dwelling older adults

International Psychogeriatrics
Carmen Rodríguez-BlázquezSpanish Group on Quality of Life and Ageing

Abstract

This is the first study to analyze the psychometric properties of the International Wellbeing Index (IWI), which comprises the Personal Wellbeing Index (PWI) and National Wellbeing Index (NWI), among community-dwelling older adults. The IWI was applied to 1106 community-dwelling adults aged 60 years and over. The sample was additionally assessed using scales for comorbidity, disability, mood, general orientation to life, social support, health-related quality of life, and two questions assessing satisfaction with life as a whole and with life in Spain. The PWI and NWI were separately analyzed for acceptability, internal consistency, convergent and discriminative validity, and precision. Linear regression analyses of the PWI and the NWI were also conducted. Mean scores were 71.0 ± 13.5 for the PWI and 49.5 ± 14.4 for the NWI. No floor or ceiling effects were detected. Cronbach's α was 0.88 for the PWI and 0.92 for the NWI. Factor analysis identified two factors in the IWI, and one factor in the PWI and NWI respectively. The PWI showed a correlation of 0.50 with the "satisfaction with life as a whole" item, and the NWI showed a correlation of 0.73 with the "satisfaction with life in Spain" item. There were significant differences...Continue Reading

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Citations

Dec 1, 2010·Quality of Life Research : an International Journal of Quality of Life Aspects of Treatment, Care and Rehabilitation·Maria João ForjazPablo Martinez-Martin
Aug 17, 2011·International Psychogeriatrics·Maria João ForjazPablo Martinez-Martin
Nov 9, 2011·International Psychogeriatrics·Gloria Fernandez-MayoralasUNKNOWN Spanish Research Group on Quality of Life and Aging
Mar 20, 2016·International Journal for Quality in Health Care : Journal of the International Society for Quality in Health Care·Marta CimasMaria João Forjaz
Mar 1, 2015·European Journal of Internal Medicine·Maria João ForjazAlexandra Prados-Torres
Nov 26, 2014·International Psychogeriatrics·Rebecca E GiglioMaria João Forjaz
Sep 26, 2015·Cellular and Molecular Life Sciences : CMLS·Yunpeng HuangBing Zhou
Dec 13, 2018·Rheumatology International·Tomas CazenaveUNKNOWN Pan-American League of Associations for Rheumatology (PANLAR) Ultrasound Study Group
May 24, 2012·European Journal of Ageing·Pablo Martinez-MartinAlba Ayala
Mar 22, 2018·The Gerontologist·Angel Rodriguez-LasoJavier Yanguas
Jun 18, 2020·International Journal of Environmental Research and Public Health·Mei-Yin KuanLi-Pei Peng
Jan 20, 2021·Archives of Gerontology and Geriatrics·Serena SabatiniUNKNOWN IDEAL programme team
Mar 18, 2020·Geriatric Nursing·Nicia Del Rocío Santana-BerlangaSergio Barrientos-Trigo
Jul 3, 2021·International Journal of Environmental Research and Public Health·Eva Serrat-GraboledaMarta Roqueta-Vall-Llosera

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