Type

Journal Article

Authors

Marylène Cloitre
Chris R. Brewin
Jonathan I. Bisson
Neil Roberts
Philip Hyland
Mark Shevlin

Subjects

Psychology

Topics
psychology international classification item response theory self organization self assessment international stress psychology posttraumatic stress disorder model parameter symptom assessment post traumatic stress disorder

A psychometric assessment of Disturbances in Self-Organization symptom indicators for ICD-11 Complex PTSD using the International Trauma Questionnaire (2018)

Abstract Background: Two ‘sibling disorders’ have been proposed for the 11th version of the International Classification of Diseases (ICD-11): Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD). To date, no research has attempted to identify the optimal symptom indicators for the ‘Disturbances in Self-Organization’ (DSO) symptom cluster. Objective: The aim of the current study was to assess the psychometric performance of scores of 16 potential DSO symptom indicators from the International Trauma Questionnaire (ITQ). Criteria relating to score variability and their ability to discriminate were employed. Method: Participants (N = 1839) were a nationally representative household sample of non-institutionalized adults currently residing in the US. Item scores from the ITQ were examined in relation to basic criteria associated with interpretability, variability, homogeneity, and association with functional impairment. The performance of the DSO symptoms was also assessed using 1- and 2-parameter item response theory (IRT) models. Results: The distribution of responses for all DSO indicators met the criteria associated with interpretability, variability, homogeneity, and association with functional impairment. The 1-parameter graded response model was considered the best model and indicated that each set of indictors performed very similarly. Conclusions: The ITQ contains 16 DSO symptom indicators and they perform well in measuring their respective symptom cluster. There was no evidence that particular indicators were ‘better’ than others, and it was concluded that the indicators are essentially interchangeable.
Collections Ireland -> National College Ireland -> Status = Published
Ireland -> National College Ireland -> Subject = B Philosophy. Psychology. Religion: Psychology
Ireland -> Maynooth University -> Status = Published
Ireland -> National College Ireland -> Subject = B Philosophy. Psychology. Religion: Psychology: Stress (Psychology)
Ireland -> Maynooth University -> Open Access DRIVERset
Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering: Psychology
Ireland -> Maynooth University -> Type = Article
Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering
Ireland -> National College Ireland -> Type = Article
Ireland -> National College Ireland -> Subject = B Philosophy. Psychology. Religion: Psychology: Stress (Psychology): Post-traumatic stress disorder

Full list of authors on original publication

Marylène Cloitre, Chris R. Brewin, Jonathan I. Bisson, Neil Roberts, Philip Hyland, Mark Shevlin

Experts in our system

1
Marylène Cloitre
National College Ireland
Total Publications: 38
 
2
Chris R. Brewin
National College Ireland
Total Publications: 25
 
3
Jonathan I. Bisson
National College Ireland
Total Publications: 29
 
4
Neil Roberts
National College Ireland
Total Publications: 27
 
5
Philip Hyland
National College of Ireland
Total Publications: 231
 
6
Mark Shevlin
National College of Ireland
Total Publications: 125