Consistency matters: measurement invariance of the EORTC QLQ-C30 questionnaire in patients with hematologic malignancies

ConclusionsOur findings support measurement invariance of the EORTC QLQ-C30 in a large sample of patients with hematological malignancies. The results showed that the number of non-invariant items was negligible, suggesting that this questionnaire is a valid and robust measurement tool in patients with hematological malignancies, also for comparisons across groups and time.
Source: Quality of Life Research - Category: Health Management Source Type: research