Hi, I am Marius Leckelt
Psychologist and Researcher

I hold an MSc in differential/personality psychology and am currently working on my PhD. Broadly speaking, my research focuses on the (social) consequences of personality and the underlying behavioural processes with a special interest in "dark" personality traits such as narcissism, psychopathy, and Machiavellianism.

Personal Info

Download my academic CV here.

In the Media

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Media Coverage & Public Outreach

  • My research has been featured in several print and online media outlets. I have also given interviews for newspapers and radio stations and done some consultancy work on 'dark pesonality traits'.

  • 29/NOV/2017

    WDR3 Resonanzen Radio interview on the "narcissism epidemic"

  • 25/NOV/2017

    Süddeutsche Zeitung I am so pretty - How narcissistic are Millenials? PDF

  • 31/SEP/2017

    ZEIT Online "Beat the Prof" Quiz on narcissism

  • MAY/2017

    Gehirn und Geist Ego on the Edge

  • 20/FEB/2017

    WDR 1LIVE Radio interview on Donald Trump and narcissism

  • 17/FEB/2017

    SWR Aktuell Radio interview on Donald Trump and narcissism

  • 07/FEB/2017

    Die ZEIT Trump only loves himself

  • 06/FEB/2017

    Consulting for the German political talk show hartaberfair on differentiating narcissism from psychopathy LINK

  • 01/NOV/2016

    Die WELT/WELT.de - Donald Trump – A Textbook Example Narcissist

  • 12/APR/2016

    Association for Psychological Science - New Study Busts Some Myths About Millenials

  • 07/DEC/2015

    Welt am Sonntag - Why radically ruthless people get ahead

  • 29/SEP/2015

    Scientific American - Why Do Narcissists Lose Popularity Over Time?

  • Research

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    Interests & Methods

    • Research Interests

      To be updated.
      Interpersonal Behaviour, Its Dynamics and Consequences, Narcissism And ‘Dark Personalities’, Dominance and Status, Assessment, Data Analysis and Methodology

    • Methods

      To be updated.

      To adequately investigate the consequences of personality and the underlying processes, I follow a multimethodological research approach. That means, basing analyses on data from different sources (e.g. self- and acquaintance reports, behaviour observation) and collecting data using different methodologies (e.g. mobile apps, mobile sensing) and study designs. This includes longitudinal as well as cross sectional study designs and data collected in the laboratory, the 'real' world (field studies), and in nationally representative panel studies (e.g. German socioeconomic panel). I believe that this approach facilitates a comprehensive understanding of personality processes and their effects.

    Publications

    Peer-reviewed

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    Journals

    • 2017

      Mahmoodi, J., LECKELT, M., van Zalk, M.W.H., Geukes, K., & Back, M. D. (2017). Big Data approaches in social and behavioral science: Four key trade-offs and a call for integration. CURRENT OPINION IN BEHAVIORAL SCIENCES, 18, 57—62
      PDF

      Grosz, M. P., Emons, W. H. M., Wetzel, E., LECKELT, M., Chopik, W. J., Rose, N., & Back, M. D. (in press). A Comparison of Unidimensionality and Measurement Precision of the Narcissistic Personality Inventory and the Narcissistic Admiration and Rivalry Questionnaire. ASSESSMENT
      PDF

      LECKELT, M., Wetzel, E., Gerlach, T. M., Ackerman, R. A., Miller, J. D., Chopik, W. J., …, Back, M. D. (in press). Validation of the Narcissistic Admiration and Rivalry Questionnaire short scale (NARQ-S) in convenience and representative samples. PSYCHOLOGICAL ASSESSMENT
      PDF

      Nestler, S., LECKELT, M., Back, M. D., von der Beck, I., Cress, U., & Oeberst, A. (2017). The production of scientific information on the internet using the example of Wikipedia [Produktion von naturwissenschaftlichen Informationen im Internet am Beispiel von Wikipedia]. PSYCHOLOGISCHE RUNDSCHAU, 68, 172—176.
      PDF

    • 2016

      Wetzel, E., LECKELT, M., Gerlach, T. J., & Back, M. D. (2016). Distinguishing subgroups of narcissists with latent class analysis. EUROPEAN JOURNAL OF PERSONALITY, 30, 374—389.
      PDF

      LECKELT, M., Back, M. D., Foster, J. D., Hutteman, R., Jaeger, G., McCain, J., Twenge, J. M., & Campbell, W. K. (2016). Entering adulthood in a recession tempers later narcissism—But only in men. JOURNAL OF RESEARCH IN PERSONALITY, 60, 8—11
      PDF

    • 2015

      LECKELT, M., Küfner, A. C. P., Nestler, S., & Back, M. D. (2015). Behavioral processes underlying the decline of narcissists‘ popularity over time. JOURNAL OF PERSONALITY AND SOCIAL PSYCHOLOGY, 109, 856—871
      PDF

    Book chapters

    • 2017

      Back, M.D., Küfner, A.C.P., & LECKELT, M. (in press). Early Impressions of Grandiose Narcissists: A Dual-Pathway Perspective. In A. D. Hermann, A. Brunell, & J. Foster (Eds.), The Handbook of trait narcissism: Key advances, research methods, and controversies. New York, NY: Springer
      PDF

      LECKELT, M. (in preparation). Grandiosity. In V. Zeigler-Hill & T. K. Shackleford (Eds.), ENCYCLOPEDIA OF PERSONALITY AND INDIVIDUAL DIFFERENCES. New York, NY: Springer.

    Where to find me

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    Contact info

    I am currently situated at the Department of Psychology - Section of Psychological Assessment and Personality Psychology at the University of Münster.

    • Fliednerstr. 21
    • +49 (251) 83-34203
    • marius.leckelt@wwu.de