Psychometric examination of the Multidimensional Psychological Flexibility Inventory Short Form (MPFI-24) and the Psy-Flex Spanish versions in individuals with chronic pain
Navarrete Hidalgo, Jaime (Parc Sanitari Sant Joan de Déu)
Rodríguez Freire, Carla (Parc Sanitari Sant Joan de Déu)
Sanabria-Mazo, Juan P.. (Universitat Autònoma de Barcelona. Departament de Psicologia Bàsica, Evolutiva i de l'Educació)
Martínez-Rubio, David (Universidad Europea de Valencia. Departament de Psicologia)
McCracken, Lance M (Uppsala Universitet. Department of Psychology)
Gallego, Ana (University of Jyväskylä. Department of Psychology)
Sundström, Felicia T.A. (Uppsala University. Department of Psychology)
Serrat, Mayte (Hospital Universitari Vall d'Hebron)
Alonso, J (Universitat Pompeu Fabra. Departament de Medicina i Ciències de la Vida)
Feliu-Soler, Albert (Universitat Autònoma de Barcelona. Departament de Psicologia Clínica i de la Salut)
Nieto Luna, Rubén (Universitat Oberta de Catalunya)
Luciano, Juan Vicente (Universitat Autònoma de Barcelona. Departament de Psicologia Clínica i de la Salut)

Fecha:	2025
Descripción:	21 pàg.
Resumen:	BACKGROUND: Acceptance and Commitment Therapy (ACT) has been found to be beneficial for individuals dealing with chronic pain. The theoretical mechanisms of change proposed by ACT are based on the Hexaflex model. To comprehensively reflect this model, the Multidimensional Psychological Flexibility Inventory (MPFI) and Psy-Flex have been developed. The study aimed to adapt the MPFI-24 and the Psy-Flex for Spanish-speaking populations with chronic pain and to examine their dimensionality, internal consistency, convergent validity and incremental validity. METHODS: This cross-sectional study involved 309 Spanish-speaking adults with chronic pain who completed an online survey. The majority of the participants were women (88. 3%). The ages ranged from 18 to 79 years. RESULTS: Factor analysis showed that the Spanish version of the MPFI-24 has 12 factors, consisting of six flexibility and six inflexibility factors, similar to the original version, but lacking second-order general factors. The Psy-Flex demonstrated a single-factor structure, maintaining the general factor of psychological flexibility seen in the original version. The MPFI-24 showed good internal consistency and adequate convergent validity, with the exception of the Acceptance and Experiential Avoidance subscales. The Psy-Flex showed good internal consistency and convergent validity. Notably, both the MPFI-24 and Psy-Flex scores significantly explained additional variance in psychological distress beyond other ACT-related measures of Hexaflex processes; however, only the Psy-Flex explained pain interference. CONCLUSIONS: The Spanish adaptations of the MPFI-24 and Psy-Flex are valid and reliable instruments for assessing the Hexaflex model processes in Spanish-speaking adults with chronic pain. SIGNIFICANCE STATEMENT: Practitioners and researchers in chronic pain will find the Spanish versions of the MPFI-24 and the Psy-Flex here, along with recommendations for their use and scoring based on a robust psychometric rationale. It should be noted that these measures surpass the Chronic Pain Acceptance Questionnaire (CPAQ) and the Psychological Inflexibility in Pain Scale (PIPS), which are considered gold standards in chronic pain assessment.
Ayudas:	Instituto de Salud Carlos III ICI20/00080 Instituto de Salud Carlos III FI20/00034
Nota:	Altres ajuts: acords transformatius de la UAB
Nota:	Altres ajuts: CIBER of Epidemiology and Public Health, Grant/Award Number: CB06/02/0046 and CB22/02/00052
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	Chronic pain ; Psychological approaches ; MPFI-24 ; Psy-Flex
Publicado en:	European journal of pain, Vol. 29, Num. 1 (January 2025) , art. e4704, ISSN 1532-2149

DOI: 10.1002/ejp.4704
PMID: 39031492

21 p, 1.1 MB

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