Development of a brief version of the social phobia inventory using item response theory: The MINI-SPIN-R

Idan M. Aderka, Mark H. Pollack, Naomi M. Simon, Jasper A.J. Smits, Michael Van Ameringen, Murray B. Stein, Stefan G. Hofmann

Research output: Contribution to journalArticlepeer-review


The Social Phobia Inventory (SPIN) is a widely used measure in mental health settings and a 3-item version (mini-SPIN) has been developed as a screening instrument for social anxiety disorder. In the present study, we examined the psychometric properties of the SPIN and developed a brief version (mini-SPIN-R) designed to assess social anxiety severity using item response theory. Our sample included 569 individuals with social anxiety disorder who participated in 2 clinical trials and filled out a battery of self-report measures. Using a nonparametric kernel smoothing method we identified the most sensitive items of the SPIN. These 3 items comprised the mini-SPIN-R, which was found to have greater internal consistency, and to capture a greater range of symptoms compared to the mini-SPIN. The mini-SPIN-R evidenced superior convergent validity compared to the mini-SPIN and both measures had similar divergent validity. Thus, the mini-SPIN-R is a promising brief measure of social anxiety severity.

Original languageEnglish
Pages (from-to)651-661
Number of pages11
JournalBehavior Therapy
Issue number4
StatePublished - Dec 2013
Externally publishedYes


  • Assessment
  • Item response theory
  • Psychometric properties
  • Social anxiety disorder
  • Social phobia inventory

ASJC Scopus subject areas

  • Clinical Psychology


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