Longitudinal measurement invariance of the Dutch Outcome Questionnaire-45 in a clinical sample.
Ruslan JabrayilovWilco H M EmonsKim De JongKlaas SijtsmaPublished in: Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation (2017)
Even though for two items the assumption of invariance was violated, results suggest that the effects of these violations on practical change assessment using the OQ-45 were negligible.
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