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Using the good cop/bad cop profile with the MMPI-2

Authors
  • Brewster, JoAnne1
  • Stoloff, Michael L.1
  • 1 James Madison University, Psychology Department, MSC 7401, Harrisonburg, VA, 22807 , Harrisonburg
Type
Published Article
Journal
Journal of Police and Criminal Psychology
Publisher
Springer US
Publication Date
Jun 01, 1999
Volume
14
Issue
2
Pages
29–34
Identifiers
DOI: 10.1007/BF02830066
Source
Springer Nature
Keywords
License
Yellow

Abstract

The Minnesota Multiphasic Personality Inventory (MMPI) has been widely used in a variety of ways to screen candidates for law enforcement positions. This study extends the use of the MMPI Good Cop/Bad Cop (GC/BC) profile (Blau, Super, & Brady, 1993) to the MMPI-2. The MMPI-2 profiles of 39 veteran police officers were used to predict their performance (No Apparent Problems, Borderline, or Serious Problems Possible), and these predictions were compared with supervisors’ ratings of the officers’ actual performance. The MMPI-2 predictions were accurate for 46% of the officers, a rate that was significantly better than chance (p=.024). Based on the current data, the best selection outcome would be obtained by accepting officers whose MMPI-2 profiles place them in the No Apparent Problems or Borderline groups, and rejecting officers whose profiles suggest Serious Problems Possible. This could be accomplished simply by rejecting any officer who obtained a score above 65T on any of the clinical scales. This selection strategy would have resulted in the acceptance of 22 officers, 19 of whom were highly rated by their supervisors, and the rejection of 17 officers, 11 of whom were rated as borderline or poorer by their supervisors. It would also result in the erroneous rejection of 6 officers who were highly rated by supervisors.

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