Psychometric properties and factor structure of the computerized PTSD scale -multimedia version among adult samples reporting trauma

<p>This study investigated the psychometric properties of the Computerized PTSD Scale-Multimedia Version (CPS-M: Richard, Mayo, Bohn, Haynes, & lll Kolman, 1997), a self-administered adaptation of the Clinician-Administered PTSD Scale (CAPS: Blake, Weathers, Nagy, Kaloupek, Klauminzer, Charney, & Keane, 1990). The sample included 161 participants from both a veteran's hospital and from a large urban outpatient HMO system who reported a history of trauma. Indices of internal consistency reliability (i.e., inter-item correlations, item-scale correlations, coefficient alpha) and temporal stability fell in satisfactory ranges. To assess convergent and discriminant validity, correlations were calculated between the CPSM and the following instruments: Purdue PTSD Scale, Beck Depression Inventory II (BDI-II), Hospital Anxiety and Depression Scale (HADS), Yale-Brown Obsessive Compulsive Scale (YBOCS), and Antisocial Behavior Inventory (ASBI). As hypothesized, the CMS-M was most strongly correlated with another measure of PTSD (<em>r</em> = .90) followed by the BDI-II (<em>r</em> = .85), HADS (<em>r</em> = .79), YBOCS (<em>r</em> = .71), and ASBI (<em>r</em> = .25). Confirmatory factor analysis procedures were used to assess fit of a set of nested measurement models. The fit of four different measurement models was tested. An oblique four-factor, first order model composed of reexperiencing (Bl-B5), avoidance (Cl-C2), dysphoria (C3-C7 & Dl-D3), and hyperarousal (D4- D5) provided the best fit to the data.</p>

Name thesis:degree_name

Doctor of Philosophy (PhD)

Level thesis:degree_level

Open Access Dissertation

Discipline thesis:degree_discipline

Psychology

Year dc:date.available

2007

Author dc:creator

• Mason, Shawn Thomas

Contributors dc:contributor

• Dean Lauterbach, Ph.D., Chair
• Norman Gordon, Ph.D.
• John Knapp, Ph.D.

• Clinical Psychology

Repository record dc:identifier

https://commons.emich.edu/theses/531

OAI identifier oai:identifier

oai:commons.emich.edu:theses-1903