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Instrument translation and initial psychometric evaluation of the Danish Body Image Quality of Life Inventory

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RATIONALE AND OBJECTIVES: Negative body perception has been reported in a number of patient populations. No instrument in Danish for measuring body image-related concerns has been available. Without such an instrument, understanding of the phenomenon in Danish-speaking populations is limited. The purpose of the study was thus to translate and validate a Danish version of the Body Image Quality of Life Inventory (BIQLI), in order to obtain a valid instrument applicable for healthcare research.

METHODS: The study consisted of two phases: (i) instrument adaptation, including forward and back translation, expert committee comparisons and cognitive interviewing, and (ii) empirical testing of the Danish version (BIQLI-DA) with subsequent psychometric evaluation. Hypothesised correlations to other measures, including body mass index (BMI), Medical Outcome Short Form-8 (SF-8), Patient Health Questionnaire-9 (PHQ-9), General Anxiety Disorder-7 and Symptom Check List-90-Revised (SCL-90-R(®) ) were tested. In addition, exploratory factor structure analysis (EFA) and internal consistency on item and scale level were performed.

RESULTS AND STUDY LIMITATIONS: The adapted instrument was found to be semantically sound, yet concerns about face validity did arise through cognitive interviews. Danish college students (n = 189, 65 men, Mage = 21.1 years) participated in the piloting of the BIQLI-DA. Convergent construct validity was demonstrated through associations to related constructs. Exploratory factor analysis revealed a potential subscale structure. Finally, results showed a high internal consistency (Cronbach's alpha = 0.92). Support for the validity of the BIQLI-DA might have been strengthened by repeating cognitive interviews after layout alterations, by piloting the instrument on a larger sample.

CONCLUSIONS: This study demonstrated tentative support for the validity of the Danish Body Image Quality of Life (BIQLI-DA) and found the measure to be reliable in terms of internal consistency. Further exploration of response processes and construct validity is needed.

OriginalsprogEngelsk
TidsskriftScandinavian Journal of Caring Sciences
Vol/bind30
Udgave nummer4
Sider (fra-til)830-844
ISSN0283-9318
DOI
StatusUdgivet - 15 jan. 2016

ID: 48282048