uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Measuring experiential avoidance in a bariatric surgery population: Psychometric properties of AAQ-W
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Psychology.
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Psychology.
2013 (English)In: Obesity Research and Clinical Practice, ISSN 1871-403X, E-ISSN 1878-0318, Vol. 7, no 6, E464-E475 p.Article in journal (Refereed) Published
Abstract [en]

Background: Valid measures capturing underlying psychological processes post surgery for obesity are needed to help identify important clinical targets and develop psychosocial interventions in conjunction with surgery. The Acceptance and Action Questionnaire for Weight (AAQ-W) measures experiential avoidance and has never been evaluated in a bariatric surgery population. Method: Participants were recruited at a bariatric surgery clinic during follow-up care. The evaluation of psychometric properties of AAQ-W was done by repeated measurements of reliability (n = 62), convergent validity (n = 75 and n = 178), predictive validity (n = 61), factor analysis and calculation of internal consistency (n = 178). Results: The AAQ-W was found to have satisfactory psychometric properties. Internal consistency was high (alpha = .86). Results showed good stability over time (r = .77) and validity coefficients ranging from r = .36 to .71. AAQ-W scores measured six months post surgery predicted satisfaction with life, negative emotional states, emotional eating and general eating pathology measured one year post surgery. However AAQ-W measured at six months did not predict percent excess BMI Loss at one year. Factor analysis showed that a five factor solution (Food as Control, Body Acceptance, Self-Stigma, Self-Efficacy and Emotional Avoidance) might be a good fit (n = 178). Conclusion: This study shows that the AAQ-W appears to be a psychometrically sound measure that can be used by researchers and clinicians in the context of bariatric surgery.

Place, publisher, year, edition, pages
2013. Vol. 7, no 6, E464-E475 p.
Keyword [en]
Bariatric surgery, Experiential avoidance, Acceptance and Action Questionnaire for Weight (AAQ-W), Validity, Reliability, Factor analysis
National Category
Social Sciences
Research subject
Psychology
Identifiers
URN: urn:nbn:se:uu:diva-183023DOI: 10.1016/j.orcp.2012.06.002ISI: 000328081200007OAI: oai:DiVA.org:uu-183023DiVA: diva2:561708
Available from: 2012-10-21 Created: 2012-10-21 Last updated: 2017-12-07Bibliographically approved
In thesis
1. A Contextual Behavioral Approach for Obesity Surgery Patients
Open this publication in new window or tab >>A Contextual Behavioral Approach for Obesity Surgery Patients
2012 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

This thesis investigates a contextual behavioral approach for obesity surgery patients. In a contextual approach a behavior is interpreted as inseparable from its current and historical context. Candidates for bariatric surgery often have a history of self-stigma, body dissatisfaction and eating for emotional relief. Despite losing a large amount of weight post surgery, psychological problems may still be present for some patients. One possible common underlying process observed in body concerns and eating patterns is experiential avoidance. Experiential avoidance is defined as; any attempt to avoid, change, or control unwanted thoughts and feelings when so doing causes harm.

Though a multidisciplinary team is recommended for post-surgical care, there are few studies evaluating the psychological treatment of patients undergoing bariatric surgery. In this thesis a protocol based on Acceptance and Commitment Therapy (ACT), was developed and implemented, partly via the Internet, in a clinical setting. In an acceptance-based approach to obesity, psychological well-being is the main outcome. ACT was significantly more effective than ‘treatment as usual’ in terms of body dissatisfaction and quality of life after surgery. Both groups improved in eating disordered attitudes and behaviors. Predictions based on the underlying treatment model were also investigated. Positive treatment outcomes were found to be associated with increased psychological flexibility.  Despite some methodological limitations, the results are promising and future studies should further evaluate ACT in the context of bariatric surgery.

This thesis also acknowledges the need for clinical assessment tools appropriate for the bariatric surgery context. The Acceptance and Action Questionnaire for Weight (AAQ-W) is a measure of experiential avoidance, and was evaluated in the present thesis. The AAQ-W was found to be a reliable and valid measure for people undergoing bariatric surgery. Another measure, Disordered Eating in Bariatric Surgery (DEBS) was developed and evaluated. The DEBS was found to posses satisfactory psychometric properties in terms of reliability and validity.  The AAQ-W and the DEBS may facilitate both systematic clinical evaluation and future research within the area of bariatric surgery.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2012. 103 p.
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Social Sciences, ISSN 1652-9030 ; 84
Keyword
obesity, bariatric surgery, stigma, emotional eating, body dissatisfaction, Acceptance and Commitment therapy, Internet
National Category
Psychology
Research subject
Psychology
Identifiers
urn:nbn:se:uu:diva-183622 (URN)978-91-554-8524-5 (ISBN)
Public defence
2012-12-14, Universitetshuset sal IV, Uppsala, 13:00 (Swedish)
Opponent
Supervisors
Available from: 2012-11-23 Created: 2012-10-30 Last updated: 2013-02-11Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Authority records BETA

Weineland, SandraDahl, Joanne

Search in DiVA

By author/editor
Weineland, SandraDahl, Joanne
By organisation
Department of Psychology
In the same journal
Obesity Research and Clinical Practice
Social Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 593 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf