Measuring work ability beyond health: Development & construct validity of the Work Ability Survey revised German

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The development of the German version of the Work Ability Survey revised (WAS-R) is presented. The WAS-R is improving psychometric problems of the Work Ability Index (WAI), i.e. a ceiling effect. Addi-tionally, it is integrating factors of work place and social environment into the measurement of work ability. Few studies have been using the WAS-R, and no validation study has been published, yet. We trans-lated the 54-item version of the WAS-R in a translation-backtranslation process. A sample of 1,052 senior managers of the German chemical industry was used for construct validation. Participants completed an online-survey of the WAS-R, the WAI, measures of job attitude and questions concerning retirement age. Factorial structure was tested using confirmatory factor analysis. Internal consistency of the subscales of the WAS-R ranged from .58 to .94. The WAS-R total score was correlated significantly with the WAI (r = .56, p < .001), job satisfaction (r = .73, p < .001), desired retirement age (r = .16, p = <.001), and willingness to return to one’s organization, if asked (r =.32, p < .001). Lower skew and kurtosis indicated a better distribution of the WAS-R than of the WAI. We compared results from our sample with a subsample of the Australian WAS-R study. The German version of the WAS-R extends our understanding of work ability by integrating characteristics of work place and social environment. Its psychometric properties allow para-metric statistical analysis. Interventions aiming at the improvement of work ability can be derived from its detailed subscales.
Original languageEnglish
JournalThe Gerontologist
Volume54
Issue numberSuppl_2
Pages (from-to)328
Number of pages1
ISSN0016-9013
DOIs
Publication statusPublished - 01.11.2014
EventThe Gerontological Society of America's Annual Scientific Meeting - GSA 2014: Making Connections: From Cells to Societies. - Kansas city, Washington, DC, United States
Duration: 05.11.201409.11.2014
Conference number: 67
https://www.geron.org/press-room/press-releases/2014-press-releases/349-the-gerontological-society-of-america-selects-2014-fellows
https://www.thegsa.org/sites/default/files/GSA_program_14.pdf

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