Methoden vergelijken

	Inventaris voor Posttraumatische Groei (PTGI)	Impact of Event Scale
Vakgebied	Traumapsychologie	Traumapsychologie
Familie	Process / pipeline	Process / pipeline
Jaar van ontstaan	1996	1997
Grondlegger	Richard G. Tedeschi & Lawrence G. Calhoun	Daniel S. Weiss & Charles R. Marmar
Type	Self-report questionnaire	Self-report questionnaire
Oorspronkelijke bron	Tedeschi, R. G., & Calhoun, L. G. (1996). The Post-Traumatic Growth Inventory: Measuring the positive legacy of trauma. Journal of Traumatic Stress, 9(3), 455-471.	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.
Aliassen	PTGI, Tedeschi and Calhoun PTGI	IES-R, Revised Impact of Event Scale
Verwant	3	3
Samenvatting	The PTGI is a 21-item self-report scale measuring positive psychological outcomes and personal growth reported after trauma exposure. Developed by Tedeschi and Calhoun in 1996, the PTGI operationalizes the construct of posttraumatic growth (PTG)—the experience of positive life change accompanying psychological struggle with trauma. Unlike scales measuring psychopathology or symptom severity, the PTGI captures meaningful psychological and existential shifts often reported by trauma survivors, including enhanced relationships, increased personal strength, spiritual change, and life appreciation.	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.