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A hierarchy of distress: Mokken scaling of the GHQ-30 (2008)
Journal Article
Watson, R., Deary, I. J., & Shipley, B. (2008). A hierarchy of distress: Mokken scaling of the GHQ-30. Psychological Medicine, 38(4), 575-579. https://doi.org/10.1017/s003329170800281x

Background. Hierarchical cumulative scales are common and informative in psychology. The General Health Questionnaire (GHQ) does not appear to have been subjected to an analysis that examines the hierarchical and cumulative nature of its items. We re... Read More about A hierarchy of distress: Mokken scaling of the GHQ-30.