Psychometric evaluation of the Signs of Depression Scale with a revised scoring mechanism in stroke patients with communicative impairment

Cross-sectional multicentre study to investigate (1) the diagnostic value of the Signs of Depression Scale (SODS) in a Likert scale format and (2) whether the Likert scale improves the diagnostic value compared with the original dichotomous scale. A total of 116 consecutive hospitalized stroke patients, of whom 53 were patients with communicative impairment.