Impact Scale of Events (IESR)
The scale which was originally named as Impact of Event Scale-Revised (IES-R)12 was used to measure the psychological trauma caused by the COVID-19 outbreak in the study. The Turkish validity and reliability of this scale, which is widely used in daily clinical practice and studies to evaluate the severity of post-traumatic stress, was made by Çorapçıoğlu et al in 2016.13 There are 22 questions divided into 3 subgroups (intrusive, avoidance, hyperarousal) on the scale where the severity of symptoms in the last 7 days is scored between 0-4. For the total IESR score, 0-23 is normal, 24-32 mild, 33-36 moderate, and ≥37 indicate severe psychological impact.