Fourth, PTSD symptoms will be assessed using the PTSD CheckList (PCL). The PCL contains 17 self-report items, in which respondents are asked to indicate the degree to which a particular symptom (e.g., "flashbacks") has bothered him or her in the past month. Items are answered on a 1 to 5 Likert scale ("not at all" to "extremely"). Used extensively in Veterans, the PCL has demonstrated strong psychometric properties (Blanchard, Jones-Alexander, Buckley, & Forneris, 1996).