Response process validity of the 9-item shared Decision-Making Questionnaire (SDM-Q-9) in a cognitive interview study with patients with cancer.

ABSTRACT: The patient-reported, psychometrically evaluated, and frequently used 9-item Shared Decision-Making Questionnaire (SDM-Q-9) assesses shared decision-making processes in medical encounters. This study aimed to investigate SDM-Q-9's response process validity from the perspective of patients with cancer. We conducted qualitative cognitive interviews with N = 11 patients of a German comprehensive cancer center. Participants described their item interpretations, content anchors for highest and lowest scores, and difficulties with item rating. We performed qualitative content analysis and assessed concordance between item interpretations and the underlying theoretical construct of SDM-Q-9. Participants reported it necessary to have a choice (i.e., awareness of more than one option) to answer SDM

SUBMITTER: Sigl H 

PROVIDER: S-EPMC12049467 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature