@article{b76faa3de1ee4756a77678e8a0d06ed1,
title = "Calibrating well-being, quality of life and common mental disorder items: psychometric epidemiology in public mental health research",
abstract = "Background: The assessment of {"}general health and well-being{"} in public mental health research stimulates debates around relative merits of questionnaire instruments and their items. Little evidence regarding alignment or differential advantages of instruments or items has appeared to date.Aims: Population-based psychometric study of items employed in public mental health narratives.Methods: Multidimensional item response theory was applied to GHQ-12, WEMWBS and EQ-5D items (Health Survey for England, 2010-2012; N = 19 290).Results: A bifactor model provided the best account of the data and showed that the GHQ-12 and WEMWBS items assess mainly the same construct. Only one item of the EQ-5D showed relevant overlap with this dimension (anxiety/depression). Findings were corroborated by comparisons with alternative models and cross-validation analyses.Conclusions: The consequences of this lack of differentiation (GHQ-12 vs. WEMWBS) for mental health and well-being narratives deserve discussion to enrich debates on priorities in public mental health and its assessment.",
keywords = "Epidemiology, General health, Psychological distress, Mental well-being, Psychometrics, Item response theory",
author = "Jan Boehnke and Croudace, {Tim J.}",
year = "2016",
month = aug,
day = "1",
doi = "10.1192/bjp.bp.115.165530",
language = "English",
volume = "209",
pages = "162--168",
journal = "British Journal of Psychiatry",
issn = "0007-1250",
publisher = "Cambridge University Press",
number = "2",
}