Social Interaction Anxiety Scale

The Social Interaction Anxiety Scale (SIAS) is a 20-item self-report questionnaire designed to measure anxiety and distress experienced during social interactions and conversations with others. Developed by Mattick and Clarke in 1998, the SIAS is a brief, user-friendly instrument for assessing social interaction anxiety in clinical, research, and community settings, particularly valued for its focus on direct interpersonal contact rather than public speaking or performance situations.