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Assessment of Stress Effects on Cognitive Flexibility using an Operant Strategy Shifting Paradigm
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Published on: May 4, 2020

Assessing psychological flexibility: what does it add above and beyond existing constructs?

Andrew T Gloster1, Jens Klotsche, Samia Chaker

  • 1Institute of Clinical Psychology and Psychotherapy, Technische Universität Dresden, Chemnitzer Strasse 46, D-01187 Dresden, Germany. gloster@psychologie.tu-dresden.de

Psychological Assessment
|July 20, 2011
PubMed
Summary

Psychological flexibility (PF) is a key concept in therapy. This study shows PF is a valid, unitary construct that differentiates clinical and non-clinical groups, adding to its clinical utility.

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Area of Science:

  • Psychology
  • Clinical Psychology
  • Psychotherapy Research

Background:

  • Psychological flexibility (PF) is central to Acceptance and Commitment Therapy (ACT).
  • PF is defined as present moment awareness and value-guided action.
  • Its distinctness and psychometric properties require further investigation.

Purpose of the Study:

  • To examine the construct validity of PF in diverse samples.
  • To assess the psychometric properties of the Acceptance and Action Questionnaire (AAQ-II).
  • To determine if PF offers incremental validity over other measures.

Main Methods:

  • The study utilized four samples: panic disorder with agoraphobia (n=368), social phobia (n=209), students (n=495), and employment seekers (n=95).
  • Confirmatory factor analysis was used to assess the structure of PF.
  • Correlations with other variables and incremental validity analyses were conducted.

Main Results:

  • Results supported a unitary, one-factor model for PF across all samples.
  • PF demonstrated expected correlations with related constructs and differentiated clinical from healthy groups.
  • Preliminary evidence of treatment sensitivity and incremental validity for functioning was found.

Conclusions:

  • Psychological flexibility (PF) is a robust, unitary construct with clinical relevance.
  • The AAQ-II appears to be a psychometrically sound measure of PF.
  • PF shows potential for enhancing understanding of psychological functioning and treatment outcomes, though further research is needed.