手法を比較

	DSM-5用ライフイベントチェックリスト（LEC-5）	Impact of Event Scale
分野	トラウマ心理学	トラウマ心理学
系統	Process / pipeline	Process / pipeline
提唱年	2013	1997
提唱者	Frank W. Weathers et al.	Daniel S. Weiss & Charles R. Marmar
種類	Self-report checklist	Self-report questionnaire
原典	Weathers, F. W., Blake, D. D., Schnurr, P. P., Kaloupek, D. G., Marx, B. P., & Keane, T. M. (2013). The Life Events Checklist for DSM-5 (LEC-5). National Center for PTSD. Available from: www.ptsd.va.gov	Weiss, D. S., & Marmar, C. R. (1997). The Impact of Event Scale—Revised. In J. P. Wilson & T. M. Keane (Eds.), Assessing psychological trauma and PTSD (pp. 399-411). Guilford Press.
別名	LEC-5, Life Events Checklist	IES-R, Revised Impact of Event Scale
関連	3	3
概要	The LEC-5 is a 17-item self-report checklist assessing exposure to stressful life events that may result in PTSD or trauma-related mental health problems. Developed by Weathers and colleagues at the National Center for PTSD in 2013, the LEC-5 identifies which types of traumatic events a person has experienced, determining the presence of a qualifying trauma exposure according to DSM-5 Criterion A. The scale is widely used in PTSD research, clinical assessment, and disaster mental health screening.	The IES-R is a 22-item self-report scale measuring subjective distress from a specific traumatic event. Developed by Weiss and Marmar in 1997 as a revision of the original 1979 Impact of Event Scale, it assesses posttraumatic stress symptoms along three core dimensions: intrusion, avoidance, and hyperarousal. The scale is widely used in clinical research, trauma assessment, and treatment monitoring.