The proportion of non-depressed subjects in a study sample strongly affects the results of psychometric analyses of depression symptoms

• Simon Foster ,

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Project administration, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: simon.foster@uzh.ch

  Affiliation Department of Child and Adolescent Psychiatry and Psychotherapy (KJPP), University Hospital of Psychiatry Zurich, University of Zurich, Zurich, Switzerland

  http://orcid.org/0000-0002-6211-0446

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• Meichun Mohler-Kuo

  Roles Conceptualization, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Writing – original draft, Writing – review & editing

  Affiliations Department of Child and Adolescent Psychiatry and Psychotherapy (KJPP), University Hospital of Psychiatry Zurich, University of Zurich, Zurich, Switzerland, La Source, School of nursing sciences, HES-SO University of Applied Sciences and Arts of Western Switzerland, Lausanne, Switzerland

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