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Rasch analysis supports the use of the Depression, Anxiety, and Stress Scales to measure mood in groups but not in individuals with chronic low back pain (with Luke Parkitny, James Henry Mcauley, Leonardo Oliveira Pena Costa, Kathryn M. Refshauge, Benedict M. Wand, Flavia Di Pietro, and G Lorimer Moseley), Journal of Clinical Epidemiology (2011)

Objective: Chronic pain is a common problem that is associated with mood disorders such as...