National Institute for Health and Care Research

Measure

Acceptance and Action Questionnaire - II (AAQ-II) 

Age range 18
Completion time 5 minutes
Respondent Self Report
Problem areas
Anxiety Mood Problems

Overview

The Acceptance and Action Questionnaire – version 2 (AAQ-II), is a measure of psychological flexibility (present in the moment, open to experiences) Psychological inflexibility is the rigid thoughts, emotions and behaviours.

Scoring & Interpretation

The AAQ-II is a 7-item unidimensional scale and is scored using a Likert-type scale (1 = ‘never’ to 7 = ‘always’). Total scores are the sum of the item scores. Scores ranges from 7 to 49. Higher total scores indicate greater psychological inflexibility/experiential avoidance.

Psychometric Properties

Internal Consistency

Internal consistency using Cronbach alpha was good (⍺ = .84)

Test-Retest Reliability

Test retest reliability was strong at 3 months (r=.81) and 12 months (r =.79)

Factor Structure

Unidimensional factor structure - supported by EFA and CFA (Bond et al.,2011)

Validity

The AAQ-II has been found to correlate significantly with measures of depression, anxiety and general psychopathology supporting construct validity. The AAQ-II has also been found to predict outcomes of mental health functioning indicating support for predictive validity.

Measurement Invariance

Access

Permission for use of the AAQ-II for research and with clients does not require additional author permission. For commercial use please contact authors.
Back to Top