Current or past-year diagnoses were assessed by trained clinicians using the Structured Clinical Interview for DSM-5 (American Psychiatric Association, 2013). Participants additionally completed the PTSD Checklist for DSM-IV: civilian version (Blanchard et al., 1996). In the present study, internal consistency was high for the total questionnaire (α = 0.95) and the hyperarousal subscale (α = 0.84). As in previous work (Mueller-Pfeiffer et al., 2013; Clancy et al., 2017), item 16 assessing symptoms of hypervigilance or “being watchful or on guard” was extracted to index hypervigilance.
