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Open AccessArticle

Translation and Validation of the Volunteer Functions Inventory (VFI) among the General Dutch Older Population

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Department of Epidemiology, University of Groningen, University Medical Center Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands
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Netherlands Interdisciplinary Demographic Institute, PO Box 11650, 2502 AR The Hague, The Netherlands
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Department of Sociology, Vrije Universiteit Amsterdam, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands
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Department of Sociology, University of Groningen, Grote Rozenstraat 31, 9712 TG Groningen, The Netherlands
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Department of Health Psychology, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
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Department of Geriatrics, University of Groningen, University Medical Center Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands
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Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2019, 16(17), 3106; https://doi.org/10.3390/ijerph16173106
Received: 17 July 2019 / Revised: 20 August 2019 / Accepted: 21 August 2019 / Published: 26 August 2019
Improvement of volunteering rates in the Netherlands is important because increased productivity among older adults would contribute to societal sustainability in the light of population aging. Therefore, a better understanding of volunteer motivations of Dutch older adults is needed. The Volunteer Functions Inventory (VFI) for assessing volunteer motivations has good psychometric properties and is adapted to several languages, but no validated Dutch translation yet exists. The aim of the current study is to validate the VFI for use in the Dutch older population (60 years and over). The Dutch-translated VFI (6 scales, 30 items) is included in the Lifelines ‘Daily Activities and Leisure Activities add-on Study’, which was distributed among participants aged 60 to 80. Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) are performed to assess the validity of the translated VFI. Internal consistency is assessed by computing Cronbach’s α’s. Results of the EFA (N = 4208) point towards a six-factor solution with a nearly perfectly clean structure. Deletion of three problematic items results in a clean factor structure. CFA results indicate moderate model fit (RMSEA = 0.06, CFI = 0.90, TLI = 0.89). Cronbach’s α’s (0.78 to 0.85) indicate good internal consistency. Goodness-of-fit indices are sufficient and comparable to those obtained in the validation of the original VFI. The current study provides support for use of the Dutch-translation of the VFI (6 scales, 27 items) to assess volunteer motivations among Dutch volunteers aged 60 years and over. View Full-Text
Keywords: voluntary work; Volunteer Functions Inventory; motivations; cross-cultural; psychometric properties; validation; older adults voluntary work; Volunteer Functions Inventory; motivations; cross-cultural; psychometric properties; validation; older adults
MDPI and ACS Style

Niebuur, J.; Liefbroer, A.C.; Steverink, N.; Smidt, N. Translation and Validation of the Volunteer Functions Inventory (VFI) among the General Dutch Older Population. Int. J. Environ. Res. Public Health 2019, 16, 3106.

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