Psychometric properties of the Portuguese version of the Acceptance and Action Questionnaire-Trauma Specific (AAQ-TS) : A study with Portuguese Colonial War Veterans
(2015) In Journal of Affective Disorders 185. p.81-89- Abstract
Abstract Background: The Acceptance and Action Questionnaire-Trauma Specific (AAQ-TS) is a self-report measure designed to assess-trauma-related psychological (in)flexibility, as conceptualized in Acceptance and Commitment Therapy. However, there are no studies to date regarding its psychometric properties. This study explores such properties in the Portuguese version of the AAQ-TS, in Portuguese Colonial War Veterans. Method: A Principal Components Analysis (PCA) was conducted in a sample from the general population of war Veterans (N=371). Confirmatory Factor Analysis (CFA) as well as reliability and convergent validity studies were performed in a different sample from the same population (N=312). For the discriminant validity a... (More)
Abstract Background: The Acceptance and Action Questionnaire-Trauma Specific (AAQ-TS) is a self-report measure designed to assess-trauma-related psychological (in)flexibility, as conceptualized in Acceptance and Commitment Therapy. However, there are no studies to date regarding its psychometric properties. This study explores such properties in the Portuguese version of the AAQ-TS, in Portuguese Colonial War Veterans. Method: A Principal Components Analysis (PCA) was conducted in a sample from the general population of war Veterans (N=371). Confirmatory Factor Analysis (CFA) as well as reliability and convergent validity studies were performed in a different sample from the same population (N=312). For the discriminant validity a clinical sample with a war-related PTSD (N=42) and a non-clinical sample without PTSD (N=44) were used. Results: The CFA suggested a re-specified 15-item model with good global adjustment and factorial validity. The AAQ-TS showed internal consistency, a good temporal reliability, convergent validity with psychopathological symptoms (related to PTSD, anxiety, depression and stress) and peritraumatic dissociation (altered awareness and depersonalization/derealization). The questionnaire also discriminates between war Veterans with and without a PTSD diagnosis. Limitations: The major limitation relates to the samples' characteristics and sampling methods, which can limit the generalization of results. Conclusion: The Portuguese version of the AAQ-TS is a reliable and valid measure to assess experiential avoidance related to trauma in Portuguese Colonial War Veterans.
(Less)
- author
- Pinto-Gouveia, José ; Carvalho, Teresa ; Cunha, Marina ; Duarte, Joana LU and Walser, Robyn D.
- publishing date
- 2015-07-06
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- AAQ-TS, Experiential avoidance, Portuguese Colonial War Veterans, Psychological flexibility, Trauma
- in
- Journal of Affective Disorders
- volume
- 185
- article number
- 7529
- pages
- 9 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:84934763121
- pmid:26148464
- ISSN
- 0165-0327
- DOI
- 10.1016/j.jad.2015.06.023
- language
- English
- LU publication?
- no
- additional info
- Funding Information: This research was supported by the second author's Ph.D. Grant ( SFRH/BD/68452/2010 ), sponsored by FCT (Foundation for Science and Technology) , Portugal, and co-sponsored by ESF (European Social Fund) , Belgium, through Portuguese POPH (Human Potential Operational Program). Funding Information: This research was supported by second author's Ph.D grant (SFRH/BD/68452/2010), sponsored by FCT (Fundation for Science and Technology), Portugal, and co-sponsored by ESF (European Social Fund), Belgium, through the Portuguese POPH (Human Potential Operational Program)
- id
- d9d533e8-985f-4cec-bb44-055e341686e1
- date added to LUP
- 2021-11-19 12:55:56
- date last changed
- 2025-06-02 05:44:51
@article{d9d533e8-985f-4cec-bb44-055e341686e1,
abstract = {{<p>Abstract Background: The Acceptance and Action Questionnaire-Trauma Specific (AAQ-TS) is a self-report measure designed to assess-trauma-related psychological (in)flexibility, as conceptualized in Acceptance and Commitment Therapy. However, there are no studies to date regarding its psychometric properties. This study explores such properties in the Portuguese version of the AAQ-TS, in Portuguese Colonial War Veterans. Method: A Principal Components Analysis (PCA) was conducted in a sample from the general population of war Veterans (N=371). Confirmatory Factor Analysis (CFA) as well as reliability and convergent validity studies were performed in a different sample from the same population (N=312). For the discriminant validity a clinical sample with a war-related PTSD (N=42) and a non-clinical sample without PTSD (N=44) were used. Results: The CFA suggested a re-specified 15-item model with good global adjustment and factorial validity. The AAQ-TS showed internal consistency, a good temporal reliability, convergent validity with psychopathological symptoms (related to PTSD, anxiety, depression and stress) and peritraumatic dissociation (altered awareness and depersonalization/derealization). The questionnaire also discriminates between war Veterans with and without a PTSD diagnosis. Limitations: The major limitation relates to the samples' characteristics and sampling methods, which can limit the generalization of results. Conclusion: The Portuguese version of the AAQ-TS is a reliable and valid measure to assess experiential avoidance related to trauma in Portuguese Colonial War Veterans.</p>}},
author = {{Pinto-Gouveia, José and Carvalho, Teresa and Cunha, Marina and Duarte, Joana and Walser, Robyn D.}},
issn = {{0165-0327}},
keywords = {{AAQ-TS; Experiential avoidance; Portuguese Colonial War Veterans; Psychological flexibility; Trauma}},
language = {{eng}},
month = {{07}},
pages = {{81--89}},
publisher = {{Elsevier}},
series = {{Journal of Affective Disorders}},
title = {{Psychometric properties of the Portuguese version of the Acceptance and Action Questionnaire-Trauma Specific (AAQ-TS) : A study with Portuguese Colonial War Veterans}},
url = {{http://dx.doi.org/10.1016/j.jad.2015.06.023}},
doi = {{10.1016/j.jad.2015.06.023}},
volume = {{185}},
year = {{2015}},
}