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dc.contributor.authorMuehlan, Holger-
dc.contributor.authorWilson, J T Lindsay-
dc.contributor.authorVon, Steinbuchel Nicole-
dc.description.abstractObjective: The Quality Of Life after BRain Injury (QOLIBRI) consortium has developed a short six-item scale (QOLIBRI-OS) to screen health-related quality of life after traumatic brain injury. The goal of the current study is to examine further psychometric qualities of the Quality Of Life after BRain Injury-Overall Scale (QOLIBRI-OS) at the item level using Rasch analysis with particular emphasis on the operating characteristics of the items. Method: A total of 921 participants with traumatic brain injury were recruited. The analysis sample was restricted to 795 participants with Glasgow Coma Score and Glasgow Outcome Score–Extended available in order to ensure a well-characterized sample. Results: Overall fit statistics indicate sufficient reliability of the QOLIBRI-OS. The assumption of unidimensionality could be confirmed with reservation. The range of item locations is small, whereas item thresholds cover a wide range of the latent trait. The majority of parameter estimations for all class intervals of the respective test are in accordance with the model assumptions. Conclusion: The results show that, despite marginal misfits to the model, the six items representing the QOLIBRI-OS could establish a Rasch scale.en_UK
dc.relationMuehlan H, Wilson JTL & Von Steinbuchel N (2016) A Rasch Analysis of the QOLIBRI Six-Item Overall Scale, Assessment, 23 (1), pp. 124-130.-
dc.rightsThe publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.-
dc.subjecthealth-related quality of lifeen_UK
dc.subjectoutcome instrumenten_UK
dc.subjecttraumatic brain injuryen_UK
dc.subjectcondition-specific quality of lifeen_UK
dc.subjectRasch analysisen_UK
dc.titleA Rasch Analysis of the QOLIBRI Six-Item Overall Scaleen_UK
dc.typeJournal Articleen_UK
dc.rights.embargoreasonThe publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work.-
dc.type.statusPublisher version (final published refereed version)-
dc.contributor.affiliationErnst Moritz Arndt University of Greifswald-
dc.contributor.affiliationUniversity of Gottingen, Georg-August University-
Appears in Collections:Psychology Journal Articles

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