Measuring psychological flexibility and cognitive defusion in individuals with acquired brain injury

J. Rauwenhoff, F. Peeters, Y. Bol, C. Van Heugten*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Purpose Acceptance and Commitment Therapy (ACT) is used increasingly for individuals with psychological distress following acquired brain injury (ABI) in different countries. However, questionnaires measuring ACT-processes are often not validated for this patient group and need cross-cultural validation. This study investigated the psychometric properties of the Acceptance and Action Questionnaire for Acquired Brain Injury (AAQ-ABI; measuring psychological flexibility related to thoughts and feelings about ABI) and the Cognitive Fusion Questionnaire (CFQ-7; measuring cognitive defusion). Materials and methods Score distribution, reliability, and convergent validity of the AAQ-ABI and the CFQ-7 were examined in Dutch individuals with ABI. Results Seventy-three patients with ABI were included. The AAQ-ABI showed good reliability (Cronbach's alpha = 0.87) and the CFQ-7 excellent reliability (Cronbach's alpha = 0.97). Both did not show a floor or ceiling effect, nor a skewed distribution. There were strong to moderate correlations between the questionnaires and measures of psychological flexibility, mood, quality of life, and value-driven behavior (AAQ-ABI: r = -0.70-0.81; CFQ-7 = -0.67-0.84). Inter-item total correlations indicate that the questions within each questionnaire measured the same construct (AAQ-ABI: r = 0.40-0.78; CFQ-7: r = 0.84-0.93). Conclusions The current study shows that the Dutch AAQ-ABI and CFQ-7 have acceptable to good psychometric properties when measuring psychological flexibility and cognitive defusion in patients with ABI.
Original languageEnglish
Pages (from-to)1301-1307
Number of pages7
JournalBrain Injury
Volume35
Issue number10
Early online date6 Sept 2021
DOIs
Publication statusPublished - Oct 2021

Keywords

  • psychological flexibility
  • cognitive defusion
  • acquired brain injury
  • acceptance and commitment therapy
  • ACTION QUESTIONNAIRE-II
  • ANXIETY STRESS SCALES
  • PSYCHOMETRIC-PROPERTIES
  • DEPRESSION SCALE
  • HOSPITAL ANXIETY
  • ACCEPTANCE
  • VALIDITY
  • MINDFULNESS
  • VALIDATION
  • AVOIDANCE

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