ArticleTrends in psychiatry and psychotherapy2024
Psychometric properties of the 9-item Posttraumatic Cognitions Inventory (PTCI-9) in an Iranian sample.
Article in Trends in psychiatry and psychotherapy, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed, 2 citations in OpenAlex.
- International Trauma Questionnaire and Posttraumatic Cognitions Inventory-9: validity evidence and measurement invariance of their Brazilian versions.Psicologia, reflexao e critica : revista semestral do Departamento de Psicologia da UFRGS · 2024Article
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
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Abstract
introductionThe Posttraumatic Cognitions Inventory (PTCI) is a widely used measure for assessing negative posttraumatic cognitions that are common among individuals with trauma-related disorders. There was a need for a valid and reliable short form of the PTCI in Persian.
objectivesThis study aimed to translate the 9-item version of the PTCI (PTCI-9) into Persian and evaluate its characteristics and psychometric properties.
methodsThis was a cross-sectional psychometric study using the translation and back-translation technique. Experts assessed the scale's content validity. Participants were 207 Iranian individuals recruited from the general population, 151 of whom were trauma-exposed. Participants completed the Persian version of the PTCI-9, the Beck Depression Inventory (BDI-II), and the World Health Organization Quality of Life (WHO-QOL) scale. The psychometric properties of the Persian version of PTCI-9 were assessed using exploratory and confirmatory factor analysis (CFA) methods. Cronbach's α coefficient and Pearson's correlation coefficients were also calculated.
resultsFactor analyses supported a three-factor model including the Self, World, and Self-Blame subscales. The Cronbach's alpha of the Persian version of PTCI-9 (α = 0.74) and its subscales (0.76, 0.82, 0.78) demonstrated acceptable reliability. The Persian PTCI-9 also had strong test-retest reliability (r = 0.79). The correlations between the Persian version of the PTCI-9 and the BDI-II (r = 0.60) and the WHO-QOL (r = -0.54) indicated that the scale also has convergent validity.
conclusionThe Persian version of the PTCI-9 showed acceptable psychometric properties. It is a brief and pragmatic measure that can be used in Iranian trauma-exposed patients for research and clinical purposes.
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