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Evaluating the responsiveness of the Warwick Edinburgh Mental Well-Being Scale (WEMWBS) : group and individual level analysis
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Maheswaran, Hendramoorthy, Weich, Scott, Powell, J. (John) and Stewart-Brown, Sarah L. (2012) Evaluating the responsiveness of the Warwick Edinburgh Mental Well-Being Scale (WEMWBS) : group and individual level analysis. Health and Quality of Life Outcomes, Volume 10 (Number 1). Article number 156. doi:10.1186/1477-7525-10-156 ISSN 1477-7525.
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Official URL: http://dx.doi.org/10.1186/1477-7525-10-156
Abstract
Background:
Mental well-being now features prominently in UK and international health policy. However, progress has been hampered by lack of valid measures that are responsive to change. The objective of this study was to evaluate the responsiveness of the Warwick Edinburgh Mental Well-being Scale (WEMWBS) at both the individual and group level.
Methods:
Secondary analysis of twelve different interventional studies undertaken in different populations using WEMWBS as an outcome measure. Standardised response mean (SRM), probability of change statistic (P̂) and standard error of measurement (SEM) were used to evaluate whether WEMWBS detected statistically important changes at the group and individual level, respectively.
Results:
Mean change in WEMWBS score ranged from −0.6 to 10.6. SRM ranged from −0.10 (95% CI: -0.35, 0.15) to 1.35 (95% CI: 1.06, 1.64). In 9/12 studies the lower limit of the 95% CI for P̂ was greater than 0.5, denoting responsiveness. SEM ranged from 2.4 to 3.1 units, and at the threshold 2.77 SEM, WEMWBS detected important improvement in at least 12.8% to 45.7% of participants (lower limit of 95% CI>5.0%).
Conclusions:
WEMWBS is responsive to changes occurring in a wide range of mental health interventions undertaken in different populations. It offers a secure base for research and development in this rapidly evolving field. Further research using external criteria of change is warranted.
Item Type: | Journal Article | ||||
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Subjects: | B Philosophy. Psychology. Religion > BF Psychology | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Health Sciences > Mental Health and Wellbeing Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School |
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Library of Congress Subject Headings (LCSH): | Mental health, Health surveys, Health status indicators -- Measurement, Psychiatry -- Research | ||||
Journal or Publication Title: | Health and Quality of Life Outcomes | ||||
Publisher: | BioMed Central Ltd. | ||||
ISSN: | 1477-7525 | ||||
Official Date: | 2012 | ||||
Dates: |
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Volume: | Volume 10 | ||||
Number: | Number 1 | ||||
Page Range: | Article number 156 | ||||
DOI: | 10.1186/1477-7525-10-156 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Open Access (Creative Commons) | ||||
Date of first compliant deposit: | 24 December 2015 | ||||
Date of first compliant Open Access: | 24 December 2015 | ||||
Funder: | NHS Health Scotland |
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