Assessing Dysfunctional Expectations in Posttraumatic Stress Disorder: Development and Validation of the
Philipp Herzog1,2,3, Tim Kaiser2, Winfried Rief1
1Philipps-University Marburg, Germany.
Assessment
|May 13, 2022
Summary
A new scale, the Posttraumatic Expectations Scale (PTES), effectively measures dysfunctional expectations in posttraumatic stress disorder (PTSD). The PTES demonstrates strong internal consistency and validity, offering a valuable tool for PTSD research and clinical assessment.
Area of Science:
- Psychology
- Psychiatry
- Clinical Psychology
Background:
- Dysfunctional expectations significantly contribute to the development and persistence of mental health disorders.
- Identifying and measuring these cognitions is crucial for understanding and treating conditions like PTSD.
Purpose of the Study:
- To develop and validate the Posttraumatic Expectations Scale (PTES) for assessing dysfunctional expectations in individuals with PTSD.
- To evaluate the psychometric properties of the PTES, including its internal consistency and validity.
Main Methods:
- A cross-sectional study involving 70 PTSD patients.
- Participants completed the PTES, Posttraumatic Cognitions Inventory (PTCI), and measures of PTSD and depression symptom severity.
- Short scales were derived using the BISCUIT method.
Main Results:
- The PTES exhibited excellent internal consistency.
- Significant correlations were found between the PTES, PTCI, and PTSD symptom severity.
- Regression analysis indicated that the PTES explained variance in PTSD symptom severity beyond the PTCI, supporting its incremental validity.
Conclusions:
- The PTES shows promise as a reliable and valid self-report measure for assessing dysfunctional expectations in PTSD patients.
- Preliminary findings support the scale's internal consistency and validity.
- Further research is needed to establish criterion-related validity, factor structure, and test-retest reliability in longitudinal studies.
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