The social phobia and social interaction anxiety scales: Evaluation of psychometric properties

  • Osman A
  • Gutierrez P
  • Barrios F
 et al. 
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Abstract

The present investigations examined the factor structure and psychometric properties of two new self-report measures of social phobia, the Social Interaction Anxiety Scale (SIAS) and the Social Phobia Scale (SPS). A confirmatory factor analysis in Study I provided support for the fit of a two-factor model of the SIAS and SPS. Internal consistency estimates were high for the original two scales with a sample of 200 undergraduates. Also, using an item parceling procedure, the obtained internal consistency reliability indices for each parcel were acceptable. Results of the CFA in Study II provided support for the factorial stability of the model identified in Study I. Furthermore, multisample analyses showed invariant patterns for factor loadings and factor correlations across 138 men and 272 women. Gender differences were not observed in the mean SIAS and SPS scale and item scores. Both scales correlated negatively and significantly with measures of social desirability. Concurrent validity was established for the scales. The SPS was less specific than the SIAS to symptoms of social phobia. KEY

Author-supplied keywords

  • Confirmatory factor analysis
  • Internal consistency estimates
  • Social phobia

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Authors

  • Augustine Osman

  • Peter M. Gutierrez

  • Francisco X. Barrios

  • Beverly A. Kopper

  • Christine E. Chiros

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