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Assessment of family functioning: evaluation of the General Functioning Scale in a Swedish Bariatric Sample
Linnaeus University, Sweden; Karolinska Institute, Sweden; Ersta Hospital, Sweden.
Linköping University, Department of Medical and Health Sciences, Division of Nursing Science. Linköping University, Faculty of Medicine and Health Sciences. Linnaeus University, Sweden.
Linnaeus University, Sweden.
Karolinska Institute, Sweden; Ersta Hospital, Sweden.
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2016 (English)In: Scandinavian Journal of Caring Sciences, ISSN 0283-9318, E-ISSN 1471-6712, Vol. 30, no 3, 614-622 p.Article in journal (Refereed) Published
Abstract [en]

BackgroundThe General Functioning Scale (GFS) was developed to assess self-perceived overall family functioning. The scale has satisfactory psychometric properties, is internationally recognised and has been used in different contexts. However, no validated Swedish version is available. Healthy family functioning can support patients and help them adhere to treatment regimens. Moreover, it maintains the physical and emotional health and that of the family as a unit. Yet, there is limited information regarding family functioning postgastric bypass surgery. Thus, it is important to use validated instruments to understand family functioning in bariatric contexts. AimTo evaluate aspects of reliability and validity in GFS in a Swedish bariatric sample, focusing on factor structure. MethodThe Swedish version of the GFS (S-GFS) was administered on two occasions to 163 participants who had undergone gastric bypass surgery 6-8 weeks prior to testing. Internal consistency, temporal stability and construct validity were assessed. ResultsData were positively skewed. The S-GFS showed good internal consistency (ordinal = 0.92) with a sufficient overall mean interitem correlation (0.500) and adequate temporal stability (intraclass correlation coefficient = 0.833). After modifying response alternatives, confirmatory factor analysis indicated acceptable fit for a one-factor model. ConclusionThe scale is a promising tool for assessing family functioning in bariatric settings. The S-GFS showed satisfactory reliability - consistent with prior research - and acceptable validity in the study sample. This study contributes to the limited research on the scales validity. However, the S-GFS needs to be evaluated in different cultural and clinical contexts, focusing on various aspects of validity and responsiveness (sensitivity to detect significant change over time) in different samples.

Place, publisher, year, edition, pages
WILEY-BLACKWELL , 2016. Vol. 30, no 3, 614-622 p.
Keyword [en]
family functioning; family assessment device; gastric bypass; psychometric evaluation
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URN: urn:nbn:se:liu:diva-132074DOI: 10.1111/scs.12269ISI: 000383803300020PubMedID: 26555951OAI: diva2:1038415

Funding Agencies|Linnaeus University; Erling-Persson Family Foundation

Available from: 2016-10-18 Created: 2016-10-17 Last updated: 2016-10-18

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