Psychometric properties of the Spanish self-report version of the panic disorder severity scale

Compr Psychiatry. 2014 Aug;55(6):1467-72. doi: 10.1016/j.comppsych.2014.04.007. Epub 2014 Apr 12.

Abstract

Objective: The goal of the study was to assess the psychometric properties and the factor structure of the Spanish self-report version of the Panic Disorder Severity Scale (PDSS-SR).

Method: One hundred and twenty four patients meeting DSM-IV criteria for panic disorder were assessed with the Spanish PDSS-SR, the Anxiety Sensitivity Index-3 (ASI-3), the Sheehan Disability Inventory (SDI) and the Beck Depression Inventory-II (BDI-II). Cronbach's alpha was used to evaluate internal consistency. Pearson correlations were used to evaluate test-retest reliability, convergent and divergent validity. Sensitivity to change data was obtained for 91 patients that had completed a cognitive behavioural therapy. The factor structure was analysed using a confirmatory factor analysis (CFA).

Results: The Spanish PDSS-SR showed excellent internal consistency, good test-retest reliability and adequate convergent validity. Regarding divergent validity, the correlation with the BDI-II was larger than expected. The Spanish PDSS-SR was sensitive to change. Our CFA suggested a two-factor model for the scale.

Conclusions: The Spanish PDSS-SR has similar psychometric properties as the previous versions of the PDSS-SR and it can become a useful instrument to assess panic symptoms in clinical and research settings in Spanish-speaking countries.

Publication types

  • Evaluation Study
  • Multicenter Study
  • Research Support, Non-U.S. Gov't
  • Validation Study

MeSH terms

  • Adult
  • Aged
  • Cognitive Behavioral Therapy
  • Factor Analysis, Statistical
  • Female
  • Humans
  • Male
  • Middle Aged
  • Panic Disorder / diagnosis*
  • Panic Disorder / psychology*
  • Panic Disorder / therapy
  • Psychiatric Status Rating Scales
  • Psychometrics
  • Reproducibility of Results
  • Self Report / standards*
  • Severity of Illness Index
  • Spain
  • Surveys and Questionnaires / standards