The Social Phobia Inventory (SoPhI): Validity and reliability in an adolescent population

Although there are numerous self-report measures to assess social anxiety in adults, and an increasing number in adolescents, only one scale designed during the last decade, the Social Phobia Inventory (SoPhI; Moore & Gee, 2003) has included an item to tap DSM-IV criterion F of social anxiety disorder (i.e. social anxiety must be present for at least six months). However, questions remain regarding the validity of the SoPhI in other languages and cultures. To address this problem the SoPhI was administered in two studies: firstly, to 457 adolescents from a community sample in order to test the internal consistency and factor analysis of the scale; and secondly, to a clinical sample comprising 114 participants with a principal diagnosis of social anxiety disorder, and a control group consisting of 78 adolescents with no diagnosis of social anxiety disorder. The scale showed good psychometric properties, including test-retest reliability, convergent validity, internal consistency, and a single-factor structure similar to the original study. Together these findings support the use of the SoPhI in a language other than English and for this range of ages.