Psychometric Properties of the Acceptance and Action Questionnaire–II in Colombia

Validation of the Spanish version of the AAQ-II in a large sample (N=1759) including university students, general population, and clinical. The scale showed a unidimensional structure, good internal consistency, invariance by sample, and sensitivity to a one-session ACT intervention. Concludes that the AAQ-II is reliable for measuring psychological inflexibility in Colombia.