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Modifikation der IES-R zur Diagnostik posttraumatischer Belastung bei Traumatisierung durch die Diagnose Krebs [Modification of the IES-R scale for assessing post-traumatic stress disorder after cancer diagnosis]
Diagnostica: Journal of Psychological Diagnostics and Differential Psychology
  • Christian Geiser, Utah State University
  • Annette F. Bölter, Universitätsklinikum Magdeburg
  • Julia Lange, Universitätsklinikum Magdeburg
  • Bernd Anger, Rehabilitationsklinik Bad Salzelmen
  • Heinz-Martin Süß, Otto-von-Guericke University
  • Jörg Frommer, Universitätsklinikum Magdeburg
Document Type
Article
Publisher
Hogrefe
Publication Date
3-29-2011
DOI
10.1026/0012-1924/a000039
Abstract
According to DSM-IV, life-threatening diseases like cancer can trigger a posttraumatic stress disorder (PTSD). Usual diagnostic instruments such as the Impact-of-Event Scale (IES-R) lack in validity. Methods: A cancer-specific theory-based PTSD concept was developed and measured by IES-R items and newly formulated items. 400 rehabilitation patients with heterogeneous tumor diagnoses, which had been diagnosed within the past year, were examined. Using CFA, a screening instrument was developed: the Questionnaire on Cancer-Specific Posttraumatic Stress (PTB-KS). The questionnaire was tested for reliability and construct validity. Results: The statistical analyses revealed that the theoretical model fit the data well (χ2/df = 2.28; CFI = .960; RMSEA = .057). On four scales the PTB-KS encompasses intrusions and avoidance (IES-R), cancer-specific strain and maladjustment. Reliability and convergent validity are satisfactory; discriminant validity has not been demonstrated sufficiently. Discussion: The revised diagnostic model improves the assessment of posttraumatic stress in cancer patients. From a clinical point of view, the PTB-KS is a suitable screening instrument despite methodological limitations.
Citation Information
Christian Geiser, Annette F. Bölter, Julia Lange, Bernd Anger, et al.. "Modifikation der IES-R zur Diagnostik posttraumatischer Belastung bei Traumatisierung durch die Diagnose Krebs [Modification of the IES-R scale for assessing post-traumatic stress disorder after cancer diagnosis]" Diagnostica: Journal of Psychological Diagnostics and Differential Psychology Vol. 57 (2011) p. 84 - 98
Available at: http://works.bepress.com/christian-geiser/34/