On the etiology of internalizing and externalizing problem behavior: A twin-family study

• Amelie Nikstat ,

  Roles Conceptualization, Formal analysis, Methodology, Project administration, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: a.nikstat@uni-bielefeld.de

  Affiliation Department of Psychology, Bielefeld University, Bielefeld, Germany

  http://orcid.org/0000-0002-3135-7139

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• Rainer Riemann

  Roles Funding acquisition, Methodology, Project administration, Resources, Supervision, Writing – review & editing

  Affiliation Department of Psychology, Bielefeld University, Bielefeld, Germany

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