title: Convergent and discriminant validity of alternative measures of maladaptive personality traits.
abstract: The purpose of the current study was to test empirically the convergent and discriminant validity of 3 recently developed, alternative measures of maladaptive personality traits: the Personality Inventory for Diagnostic and Statistical Manual for Mental Disorders-Fifth Edition (DSM-5, PID-5; Krueger, Derringer, Markon, Watson, & Skodol, 2012), the Computerized Adaptive Test-Personality Disorder Static Form (CAT-PD-SF; Simms et al., 2011), and Five Factor Model Personality Disorder scales (FFMPD; Widiger, Lynam, Miller, & Oltmanns, 2012). These measures were constructed with different rationales and methods, yet the result was highly congruent. The PID-5 and CAT-PD-SF were administered to 286 community adults with current or a history of mental health treatment; the CAT-PD-SF and FFMPD scales to 262 such adults; and the PID-5 and FFMPD scales to 266. The results indicated good to excellent internal consistency, as well as good to excellent convergent and discriminant validity for most scales with a few notable exceptions. Suggestions for future research are provided, including the potential benefits of scales that are unique to a respective instrument, replication of a dependency factor, and exploration as to the basis for instances of questionable convergent or discriminant validity. (PsycINFO Database Record
authors.affiliation: Department of Psychology, University of Kentucky.
authors.forename: Cristina
authors.initials: C
authors.lastname: Crego
authors.affiliation: Department of Psychology, University of Kentucky.
authors.forename: Thomas A
authors.initials: TA
authors.lastname: Widiger
mesh_terms: D000223:Adaptation, Psychological; D000328:Adult; D039721:Diagnostic and Statistical Manual of Mental Disorders; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010551:Personality; D010554:Personality Disorders / Q000175:diagnosis*; D010555:Personality Inventory; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D015203:Reproducibility of Results