Social Interaction Self-Statement Test

The SISST is a 30-item self-report instrument that captures the internal self-statements people experience during face-to-face social interactions — specifically the balance between confidence-supporting thoughts and self-critical, anxiety-driven ones. Scores on two independent subscales (Positive Thoughts and Negative Thoughts) reveal the cognitive patterns most closely tied to social anxiety and interpersonal avoidance.

Why Take a SISST

Social anxiety rarely stems from skill deficits alone — it is maintained by recurring negative self-statements that amplify discomfort and undermine performance during social interactions. Identifying the specific balance of positive and negative self-talk in your case gives therapists and clients a precise target for cognitive restructuring and exposure work.

A SISST assessment is particularly useful when standard anxiety measures flag social discomfort but do not explain the cognitive mechanism behind it. By separating facilitative from inhibitory self-statements, the scale pinpoints whether intervention should focus on increasing positive self-talk, reducing self-critical thoughts, or both.

What the Assessment Measures

• Negative self-statements (NT subscale) — frequency of self-critical, worry-based thoughts during social encounters that increase discomfort and undermine perceived communication ability; scored from 15 to 60.
• Positive self-statements (PT subscale) — frequency of encouraging, confidence-supporting inner dialogue during interpersonal situations; scored from 20 to 75.
• Cognitive profile — the ratio and pattern between PT and NT scores, which indicates whether social anxiety is driven primarily by an excess of negative thoughts, a deficit of positive ones, or both.

Who This Assessment Is For

The SISST is appropriate for adults who experience nervousness, avoidance, or persistent self-doubt in everyday social situations such as meeting new people, initiating conversations, or interacting with unfamiliar groups. Clinicians use it during cognitive-behavioral therapy intake to map the self-talk patterns fueling social phobia before beginning exposure or cognitive restructuring. It is also well suited for social skills training programs and communication coaching, where tracking shifts in self-statements over time provides objective evidence of progress.

Clinical Validity and Use in Practice

The SISST demonstrates solid psychometric properties across diverse samples, with good internal consistency on both subscales and adequate test-retest reliability. NT and PT scores show expected correlations with established measures of social anxiety and social interaction anxiety, supporting construct validity. Results are screening-level data and should be interpreted in the context of a full clinical assessment; the instrument is not a diagnostic tool. Repeated administration using the same instructions makes it sensitive to change across treatment, making it a practical outcome measure in cognitive-behavioral and exposure-based interventions.