@misc{BondueScheithauer2016,
  author    = {Bond{\"u}, Rebecca and Scheithauer, Herbert},
  title     = {Narcissistic symptoms in German school shooters},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {392},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-404452},
  pages     = {16},
  year      = {2016},
  abstract  = {School shooters are often described as narcissistic, but empirical evidence is scant. To provide more reliable and detailed information, we conducted an exploratory study, analyzing police investigation files on seven school shootings in Germany, looking for symptoms of narcissistic personality disorder as defined by the Diagnostic and Statistical Manual of Mental Disorders (4th ed.; DSM-IV) in witnesses' and offenders' reports and expert psychological evaluations. Three out of four offenders who had been treated for mental disorders prior to the offenses displayed detached symptoms of narcissism, but none was diagnosed with narcissistic personality disorder. Of the other three, two displayed narcissistic traits. In one case, the number of symptoms would have justified a diagnosis of narcissistic personality disorder. Offenders showed low and high self-esteem and a range of other mental disorders. Thus, narcissism is not a common characteristic of school shooters, but possibly more frequent than in the general population. This should be considered in developing adequate preventive and intervention measures.},
  language  = {en}
}
@misc{MorfSchuerchKuefneretal.2017,
  author    = {Morf, Carolyn C. and Sch{\"u}rch, Eva and K{\"u}fner, Albrecht and Siegrist, Philip and Vater, Aline and Back, Mitja and Mestel, Robert and Schr{\"o}der-Ab{\´e}, Michela},
  title     = {Expanding the nomological net of the pathological narcissism inventory},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {410},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-405182},
  pages     = {25},
  year      = {2017},
  abstract  = {The Pathological Narcissism Inventory (PNI) is a multidimensional measure for assessing grandiose and vulnerable features in narcissistic pathology. The aim of the present research was to construct and validate a German translation of the PNI and to provide further information on the PNI's nomological net. Findings from a first study confirm the psychometric soundness of the PNI and replicate its seven-factor first-order structure. A second-order structure was also supported but with several equivalent models. A second study investigating associations with a broad range of measures (DSM Axis I and II constructs, emotions, personality traits, interpersonal and dysfunctional behaviors, and well-being) supported the concurrent validity of the PNI. Discriminant validity with the Narcissistic Personality Inventory was also shown. Finally, in a third study an extension in a clinical inpatient sample provided further evidence that the PNI is a useful tool to assess the more pathological end of narcissism.},
  language  = {en}
}