Psychometric evaluation of a novel measure of trauma-related cannabis use to cope

Abstract Background: Posttraumatic stress disorder (PTSD) and cannabis use disorder (CUD) are commonly comorbid and are associated with many negative public health outcomes. One plausible explanation for this comorbidity comes from a self-medication framework, which suggests people use cannabis to cope with PTSD symptoms. Despite theoretical and empirical evidence for PTSD-related cannabis use to cope, no measure of this construct exists. Objective: We sought to address this gap by developing and validating a novel measure of PTSD-specific cannabis self-medication, which