Testing a bifactor model of the comprehensive assessment of acceptance and Commitment Therapy Processes (CompACT) in Finnish and British populations

Introduction: Psychological flexibility is a core concept in Acceptance and Commitment Therapy, with several self-report instruments developed to measure it. One multidimensional measure is the Comprehensive Assessment of Acceptance and Commitment Therapy Processes (CompACT). This study is the first...

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Autores: Gallego Alonso, Ana Belén, Navarrete Hidalgo, Jaime, Gorinelli, Simone, Brandolin, Francesca, Lappalainen, Päivi, Golijani-Moghaddam, Nima, Dawson, David L., Lappalainen, Raimo, Luciano, Juan V.
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2025
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositório:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/27685
Acesso em linha:http://hdl.handle.net/10256/27685
Access Level:Acceso aberto
Palavra-chave:Teràpia d'acceptació i compromís
Acceptance and commitment therapy
Adaptabilitat (Psicologia)
Adaptability (Psychology)
Anàlisi factorial
Factor analysis
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spelling Testing a bifactor model of the comprehensive assessment of acceptance and Commitment Therapy Processes (CompACT) in Finnish and British populationsGallego Alonso, Ana BelénNavarrete Hidalgo, JaimeGorinelli, SimoneBrandolin, FrancescaLappalainen, PäiviGolijani-Moghaddam, NimaDawson, David L.Lappalainen, RaimoLuciano, Juan V.Teràpia d'acceptació i compromísAcceptance and commitment therapyAdaptabilitat (Psicologia)Adaptability (Psychology)Anàlisi factorialFactor analysisIntroduction: Psychological flexibility is a core concept in Acceptance and Commitment Therapy, with several self-report instruments developed to measure it. One multidimensional measure is the Comprehensive Assessment of Acceptance and Commitment Therapy Processes (CompACT). This study is the first to test a bifactor structure of the CompACT providing new insights into its dimensional structure and how scores should be computed. Additionally, the study validates the Finnish version of the instrument. Methods: Data from five distinct non-clinical Finnish (n = 281) and British samples (n = 690) were obtained. The internal structure of the CompACT was examined through confirmatory factor analysis. For the Finnish samples, reliability, construct validity, and sensitivity to change were also performed. Results: The bifactor structure was the best-fitting model across Finnish and British samples, supporting both a general psychological flexibility factor and three specific subcomponents: openness to experience, behavioral awareness, and valued action. The Finnish version of the CompACT demonstrated good internal consistency, strong construct validity, and significant correlations with mindfulness, well-being, stress, and depression measures. Additionally, the measure was sensitive to change in psychological flexibility following ACT-based interventions, with moderate-to-large effect sizes. Discussion: This study represents a significant advancement in the psychometric evaluation of the CompACT, providing the first empirical evidence that a bifactor model offers the optimal structural representation of the measure. The bifactor structure supports, for the first time, the computation of both an overarching psychological flexibility score and subscale scores in the CompACT, reinforcing the theoretical conceptualization of psychological flexibility. These findings contribute to the refinement of psychological flexibility measurement and offer valuable insights for both research and clinical applications. Future studies should further investigate the bifactor model's added value over other established measures of psychological flexibilityJaime Navarrete has a postdoctoral contract funded by CIBERESP (CB22/02/00052; PI: Juan V. Luciano). We are also grateful to the Institute of Health Carlos III (ISCIII; PI22/00829) for its support. Open Access funding provided thanks to the CRUE-CSIC agreement with ElsevierElsevier2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionpeer-reviewedapplication/pdfhttp://hdl.handle.net/10256/27685http://hdl.handle.net/10256/27685Journal of Contextual Behavioral Science, 2025, vol. 38, art.núm. 100952Articles publicats (D-PS)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)Inglésinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcbs.2025.100952info:eu-repo/semantics/altIdentifier/issn/2212-1447info:eu-repo/semantics/altIdentifier/eissn/2212-1455Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:10256/276852026-05-29T05:05:01Z
dc.title.none.fl_str_mv Testing a bifactor model of the comprehensive assessment of acceptance and Commitment Therapy Processes (CompACT) in Finnish and British populations
title Testing a bifactor model of the comprehensive assessment of acceptance and Commitment Therapy Processes (CompACT) in Finnish and British populations
spellingShingle Testing a bifactor model of the comprehensive assessment of acceptance and Commitment Therapy Processes (CompACT) in Finnish and British populations
Gallego Alonso, Ana Belén
Teràpia d'acceptació i compromís
Acceptance and commitment therapy
Adaptabilitat (Psicologia)
Adaptability (Psychology)
Anàlisi factorial
Factor analysis
title_short Testing a bifactor model of the comprehensive assessment of acceptance and Commitment Therapy Processes (CompACT) in Finnish and British populations
title_full Testing a bifactor model of the comprehensive assessment of acceptance and Commitment Therapy Processes (CompACT) in Finnish and British populations
title_fullStr Testing a bifactor model of the comprehensive assessment of acceptance and Commitment Therapy Processes (CompACT) in Finnish and British populations
title_full_unstemmed Testing a bifactor model of the comprehensive assessment of acceptance and Commitment Therapy Processes (CompACT) in Finnish and British populations
title_sort Testing a bifactor model of the comprehensive assessment of acceptance and Commitment Therapy Processes (CompACT) in Finnish and British populations
dc.creator.none.fl_str_mv Gallego Alonso, Ana Belén
Navarrete Hidalgo, Jaime
Gorinelli, Simone
Brandolin, Francesca
Lappalainen, Päivi
Golijani-Moghaddam, Nima
Dawson, David L.
Lappalainen, Raimo
Luciano, Juan V.
author Gallego Alonso, Ana Belén
author_facet Gallego Alonso, Ana Belén
Navarrete Hidalgo, Jaime
Gorinelli, Simone
Brandolin, Francesca
Lappalainen, Päivi
Golijani-Moghaddam, Nima
Dawson, David L.
Lappalainen, Raimo
Luciano, Juan V.
author_role author
author2 Navarrete Hidalgo, Jaime
Gorinelli, Simone
Brandolin, Francesca
Lappalainen, Päivi
Golijani-Moghaddam, Nima
Dawson, David L.
Lappalainen, Raimo
Luciano, Juan V.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Teràpia d'acceptació i compromís
Acceptance and commitment therapy
Adaptabilitat (Psicologia)
Adaptability (Psychology)
Anàlisi factorial
Factor analysis
topic Teràpia d'acceptació i compromís
Acceptance and commitment therapy
Adaptabilitat (Psicologia)
Adaptability (Psychology)
Anàlisi factorial
Factor analysis
description Introduction: Psychological flexibility is a core concept in Acceptance and Commitment Therapy, with several self-report instruments developed to measure it. One multidimensional measure is the Comprehensive Assessment of Acceptance and Commitment Therapy Processes (CompACT). This study is the first to test a bifactor structure of the CompACT providing new insights into its dimensional structure and how scores should be computed. Additionally, the study validates the Finnish version of the instrument. Methods: Data from five distinct non-clinical Finnish (n = 281) and British samples (n = 690) were obtained. The internal structure of the CompACT was examined through confirmatory factor analysis. For the Finnish samples, reliability, construct validity, and sensitivity to change were also performed. Results: The bifactor structure was the best-fitting model across Finnish and British samples, supporting both a general psychological flexibility factor and three specific subcomponents: openness to experience, behavioral awareness, and valued action. The Finnish version of the CompACT demonstrated good internal consistency, strong construct validity, and significant correlations with mindfulness, well-being, stress, and depression measures. Additionally, the measure was sensitive to change in psychological flexibility following ACT-based interventions, with moderate-to-large effect sizes. Discussion: This study represents a significant advancement in the psychometric evaluation of the CompACT, providing the first empirical evidence that a bifactor model offers the optimal structural representation of the measure. The bifactor structure supports, for the first time, the computation of both an overarching psychological flexibility score and subscale scores in the CompACT, reinforcing the theoretical conceptualization of psychological flexibility. These findings contribute to the refinement of psychological flexibility measurement and offer valuable insights for both research and clinical applications. Future studies should further investigate the bifactor model's added value over other established measures of psychological flexibility
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
peer-reviewed
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10256/27685
http://hdl.handle.net/10256/27685
url http://hdl.handle.net/10256/27685
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcbs.2025.100952
info:eu-repo/semantics/altIdentifier/issn/2212-1447
info:eu-repo/semantics/altIdentifier/eissn/2212-1455
dc.rights.none.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Journal of Contextual Behavioral Science, 2025, vol. 38, art.núm. 100952
Articles publicats (D-PS)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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