Utility and validity of the STAI with anxiety disorder patients

Br J Clin Psychol. 1990 Nov;29(4):429-32. doi: 10.1111/j.2044-8260.1990.tb00906.x.


Factor analytic studies of the State-Trait Anxiety Inventory (STAI) have provided support for the concepts of state and trait anxiety. This article reports the factor structure of the STAI (Form X) using 205 panic-disordered patients with and without agoraphobia. Results show that a two-factor oblique solution is the most appropriate, accounting for 41.1 per cent of the variance. Eighteen of the A-State items had salient loadings on factor 1 (state anxiety) and all 20 of the A-Trait items had salient loadings on factor 2 (trait anxiety). This study demonstrates the utility of the STAI in measuring anxiety in clinical populations and further supports the theoretical distinction between state and trait anxiety.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Agoraphobia / diagnosis
  • Agoraphobia / psychology
  • Anxiety Disorders / diagnosis*
  • Anxiety Disorders / psychology
  • Female
  • Humans
  • Male
  • Middle Aged
  • Panic
  • Personality Inventory / statistics & numerical data*
  • Psychometrics
  • Reproducibility of Results