Psychometric Properties and Factor Structure of the Spanish Version of the Acceptance and Action Questionnaire-II (AAQ-II) in Ecuador

Belén Paladines-Costa, Víctor López-Guerra, Pablo Ruisoto, Silvia Vaca-Gallegos and Raúl Cacho
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Belén Paladines-Costa: Department of Psychology, Technical Particular University of Loja (UTPL), Loja 110107, Ecuador
Víctor López-Guerra: Department of Psychology, Technical Particular University of Loja (UTPL), Loja 110107, Ecuador
Pablo Ruisoto: Department of Health Sciences, Public University of Navarre, 31006 Pamplona, Spain
Silvia Vaca-Gallegos: Department of Psychology, Technical Particular University of Loja (UTPL), Loja 110107, Ecuador
Raúl Cacho: Department of Health Sciences, Public University of Navarre, 31006 Pamplona, Spain

IJERPH, 2021, vol. 18, issue 6, 1-10

Abstract: (1) Background: The Acceptance and Action Questionnaire-II (AAQ-II) is the most well-known self-report measure to assess psychological inflexibility, a transdiagnostic pathological process, and targets for interventions. Objective: The aim of this study was to analyze the psychometric properties and factorial structure of the Ecuadorian Spanish version of the AAQ-II in a large sample of college students in Ecuador. (2) Methods: A total of 7905 students, 46.26% male and 53.75% female, from 11 Ecuadorian universities were surveyed. The AAQ-II was tested for factorial structure, reliability, and correlations with other health-related measures. (3) Results: The AAQ-II showed an unidimensional factorial structure, accounting for 66.87% to 70% of the total variance and showing a good fit of the data to the model (comparative adjustment index (CFI) = 0.995; goodness of fit index (GFI) = 0.992; Standardized Root Mean Squared Residual (SRMR) = 0.037; mean square approximation error (RMSEA) = 0.047, CI90% = 0.038–0.056). Reliability was optimal (Cronbach’s ? = 0.919; ? = 0.928), and AAQ-II scores significantly correlated with multiple health indicators. Psychological inflexibility was significantly higher in women than men. (4) Conclusions: The Spanish version of the AAQ-II showed good psychometric properties, which further supports psychological inflexibility, not just as a transdiagnostic process.

Keywords: acceptance and action questionnaire; acceptance and commitment therapy; psychological inflexibility; psychometric properties; university students (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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