Calibrating well-being, quality of life and common mental disorder items: Psychometric epidemiology in public mental health research

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.Population-based psychometric study of items employed in public mental health narratives.Multidimensional item response theory was applied to General Health Questionnaire...