Clare Bradley, S Barendse, H Ishii and A Riazi (2006) Development of the Well-being questionaire short-form in Japanese: the W-BQ12. Health and Quality of Life Outcomes, 40 (4).
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Background: The Well-being questionaire (W-BQ) was designed to measure psychological well-being in people with diabetes. This study aimed to develop a Japanese version and a short form of the W-BQ. Methods: A linguistic validation process produced a preliminary Japanese version of the 22-item W-BQ, which was distributed to 550 patients. Factor structure, reliability (Cronbach's alpha) and aspects of validity (hypothesised group differences and correlations with other measures) were evaluated. Results: Questionaires were returned by 464 patients (84.4%). Preliminary factor analysis revealed that the Depression and Anxiety items were dispersed according to the positive or negative direction of the wording. A 12-item W-BQ (Japanese W-BQ12), consisting of three 4-item subscales (Negative Well-being, Energy and Positive Well-being), was constructed that balanced positively and negatively worded items. Cronbach's alpha was high (>0.85) for the 12-item questionnaire and consistently high (>0.82) across sex and treatment subgroups. Cronbach's alpha for subscale scores in the total sample ranged from 0.69 (Energy) to 0.80 (Positive Well-being). Expected subgroup differences indicated significantly poorer well-being in women compared with men and in insulin-treated patients compared with tablet/diet treated patients. Discriminant and convergent validity was supported by minimal correlations between W-BQ12 scores and HbAIc and low-to-moderate correlations with Diabetes Treatment Satisfaction Questionnaire (DTSQ) scores. Conclusion: The W-BQ12 (Japanese) is short, reliable and valid measure of psychological well-being that is suitable for use with people with diabetes. The items selected to produce the W-BQ12 (Japanese) have since produced psychometrically sound 12-item short-form measures in other translations for use in diabetes and in other chronic illnesses.
This is a Published version This version's date is: 03/07/2006 This item is not peer reviewed
https://repository.royalholloway.ac.uk/items/7dc77f01-dc80-8f35-47a5-f76cc4b9386f/1/
Deposited by () on 23-Dec-2009 in Royal Holloway Research Online.Last modified on 12-May-2010
This is an Open Access article.