HIGHLIGHTS
- What: The aim of this study was to present transfer rules that allow the conversion of the patients` scores from one questionnaire to another.
- Who: Michael Friedrich from the Department of Medical Psychology and Medical Sociology, University of Leipzig, Leipzig, Germany have published the research work: Sleep quality in cancer patients: a common metric for several instruments measuring sleep quality, in the Journal: (JOURNAL)
SUMMARY
Other questionnaires, such as the Insomnia Severity Index ISI or the Jenkins Sleep Scale JSS, comprise several items that have to be added up to a . . .

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