Mitchell, Jan and Bradley, Clare (2001) Psychometric evaluation of the 12-item Well-being Questionnaire for use with people with macular disease. Quality of Life Research, 10 (5).
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This paper reports the evaluation of a generic measure of psychological well-being, the 12-item Well-being Questionnaire (W-BQ12), for use with people who have the chronic eye condition, macular disease (MD). The W-BQ12 was incorporated in a self-administered questionnaire which was completed by 1421 members of the Macular Disease Society (MD Society). Unforced factor analysis elicited the expected three factors representing constructs of positive well-being, energy and negative well-being. A forced single-factor solution supported use of the whole scale to measure total general well-being. High Cronbach's alpha coefficients demonstrated good internal consistency reliability in the entire scale (alpha = 0.87) and in subscales (alpha > 0.78). The factor structure matched that found in samples of people with diabetes for whom the W-BQ12 was first developed, indicating construct validity. Expected subgroup differences in the MD sample indicated significantly poorer well-being in women than in men and also in participants who were registered blind or partially sighted compared to those who were not registered. The W-BQ12 will be useful in measuring outcomes in rehabilitative and medical interventions and in researching factors affecting adjustment to MD.
This is a Submitted version This version's date is: 2001 This item is not peer reviewed
https://repository.royalholloway.ac.uk/items/633b0700-b9e5-e7aa-9827-6ef8dcd66adb/1/
Deposited by Research Information System (atira) on 24-May-2012 in Royal Holloway Research Online.Last modified on 24-May-2012