“…Post‐traumatic stress disorder (PTSD) is a common sequela to experiencing potentially traumatic events such as threatened or witnessed death, actual or threatened serious injury, or sexual violence (American Psychiatric Association, 2013; Ehlers & Clark, 2000). Individuals with co‐occurring autism spectrum disorder (ASD) and intellectual disability (ID) are more frequently exposed to potentially traumatic events (Dinkler et al, 2017; Gotby, Lichtenstein, Långström, & Pettersson, 2018; McDonnell et al, 2019; Sullivan & Knutson, 2000) and may be particularly vulnerable to the development of PTSD (Brewin, Rumball, & Happé, 2019; Kerns, Newschaffer, & Berkowitz, 2015; Peterson et al, 2019). Perception of the traumatic event is critical to the subsequent risk of developing PTSD (Ehlers & Clark, 2000), and perception of events in individuals with ASD and ID may be altered due to a number of differences, including sensory processing issues, intellectual capacity, verbal skills, coping strategies, social support and previous life experiences (Brewin et al, 2019; Daveney, Hassiotis, Katona, Matcham, & Sen, 2019; Mason‐Roberts et al, 2018; McCarthy, Blanco, Gaus, Razza, & Tomasulo, 2017; Wigham & Emerson, 2015).…”