Development and validation of the super-short form of the Elemental
Psychopathy Assessment
Katherine L. Collison
a
, Joshua D. Miller
b
, Eric T. Gaughan
c
, Thomas A. Widiger
d
, Donald R. Lynam
a,
⁎
a
Purdue University, Department of Psychological Sciences, 703 Third Street, West Lafayette, IN 47907-2081, USA
b
University of Georgia, Department of Psychology, 125 Baldwin St, Athens, GA 30602, USA
c
University of Georgia, Department of Psychology, 4400 College Boulevard, Suite 190, Overland Park, KS 66211, USA
d
University of Kentucky, Department of Psychology, 106-B Kastle Hall, Lexington, KY 40506, USA
abstract article info
Article history:
Received 17 September 2016
Accepted 17 September 2016
Available online xxxx
Purpose: Current measures of psychopathy are limited in a number of ways, including length, administration
methods, and reliance on history of antisocial behavior. Both the full and short forms of the Elemental Psychop-
athy Assessment (EPA) have demonstrated convergent validity and strong relations to other psychopathy mea-
sures and external criteria empirically associated with psychopathy.
Methods: In order to create an even briefer version of the EPA-SF, the EPA was administered to two separate un-
dergraduate samples (n = 907 and n = 787) and a smaller sample of male prison inmates (n = 77) along with
widely used measures of psychopathy and measures of Big Five personality traits and antisocial behavior.
Results: Eighteen items (one per EPA subscale) were chosen to comprise the final “super-short” form. Exploratory
factor analyses performed at the item level showed a three-factor solution (Antagonism, Disinhibition, and Emo-
tional Stability). The factor scales and total score of the EPA super-short form demonstrated strong relations to
other psychopathy measures and external criteria associated with psychopathy.
Conclusions: The EPA super-short form could be a promising alternative to other psychopathy measures currently
used in criminology due to its brevity and basis in an empirically validated personality model.
© 2016 Elsevier Ltd. All rights reserved.
Keywords:
Psychopathy
Assessment
Personality
Five-factor model
Antagonism
1. Introduction
Psychopathy is a complex personality construct with a long history
in personality and clinical psychology (Cleckley, 1941), characterized
by dysfunction in a number of areas. Interpersonally, psychopaths
tend to be antagonistic, dominant, and exhibit superficial charm. Affec-
tively, psychopaths can be described as callous, lacking self-directed
negative affect and empathy, and demonstrating negative other-direct-
ed affect. Behaviorally, psychopaths tend to exhibit pan-impulsivity
(Lynam et al., 2011) and a number of externalizing behaviors, including
substance use (e.g., Lynam et al., 2013; Gustavson et al., 2007), aggres-
sion (e.g., Walters, 2003), and sexual offending (e.g., Knight & Guay,
2006). Much of the interest in psychopathy is driven by its relatively
strong relations with antisocial behaviors (e.g., Lykken, 1995; Hare &
Neumann, 2008), particularly violence and criminality. The Hare Psy-
chopathy Checklist (PCL; e.g., Hare, 1991; 2003) family of measures
has consistently yielded moderate to large effect sizes for predicting
violent recidivism among both juvenile and adult offenders (Rice &
Harris, 2013), and also more accurately predicted recidivism than a
widely used violence risk assessment tool, the HCR-20.
Because of the strong theoretical and empirical overlap between
psychopathy and criminal and antisocial behavior (e.g., Hare, 1999),
psychopathy is emerging as an important construct in criminology
(e.g., Polaschek & Daly, 2013). DeLisi (2009) argued that psychopathy
should be considered the unified theory of crime because of its embodi-
ment of the “pejorative essence of antisocial behavior” as well as its
ability to accommodate both dimensional and categorical conceptuali-
zations of antisocial behavior across diverse populations. DeLisi et al.
(2014) argue that one possible mechanism for psychopathy's relation-
ship with antisocial behavior and criminality is moral disengagement,
defined as the tendency to selectively disengage from moral censure.
Moral disengagement allows for an individual to engage in often self-
serving behaviors that are in contrast with moral principles without
feeling guilt or remorse (DeLisi et al., 2014). The callousness that charac-
terizes psychopathic individuals directly relates to moral disengage-
ment as it prevents the individual from emotionally relating to others,
which is required to trigger self-conscious emotions such as guilt or
shame. Without guilt or shame, the impetus to inhibit antisocial behav-
iors is missing; for this reason, it is unsurprising that individuals with
Journal of Criminal Justice 47 (2016) 143–150
⁎ Corresponding author.
E-mail addresses: kcolliso@purdue.edu (K.L. Collison), jdmiller@uga.edu (J.D. Miller),
eric.gaughan@gmail.com (E.T. Gaughan), widiger@email.uky.edu (T.A. Widiger),
dlynam@purdue.edu (D.R. Lynam).
http://dx.doi.org/10.1016/j.jcrimjus.2016.09.002
0047-2352/© 2016 Elsevier Ltd. All rights reserved.
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Journal of Criminal Justice