The Liebowitz Social Anxiety Scale (LSAS)

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Abstract

The Liebowitz Social Anxiety Scale (LSAS) is a highly respected psychometric instrument used globally for assessing the severity of Social Anxiety Disorder (SAD), historically known as social phobia. Comprising 24 items detailing common social and performance situations, the LSAS is unique due to its mandatory dual scoring system. This system requires individuals to rate both their subjective level of emotional distress (fear or anxiety) and their subsequent behavioral response (avoidance) for each situation. The LSAS is indispensable in clinical settings for diagnostic confirmation, tracking treatment efficacy, and distinguishing between different subtypes of social anxiety presentation.

Keywords

Liebowitz Social Anxiety Scale, LSAS, Social Anxiety Disorder, Social Phobia, Phobia assessment, Avoidance behavior, Fear rating, Psychometric instrument, Clinical outcome measure.

Authors

Michael R. Liebowitz, Richard G. Heimberg, David M. Fresco, Janet Travers, Murray B. Stein.

Purpose

The primary objective of the LSAS is to establish a reliable and empirically valid quantitative index of social anxiety symptoms across a diverse spectrum of social interaction and performance contexts. This instrument was strategically developed to possess high sensitivity to clinical change, making it a critical tool for gauging the effectiveness of therapeutic interventions, including pharmacological treatments and psychological approaches like Cognitive Behavioral Therapy (CBT).

Furthermore, the scale assists clinicians in establishing clinical significance thresholds, moving beyond simple categorical diagnosis. By integrating ratings of both the cognitive-affective component (fear/anxiety) and the behavioral component (avoidance), the LSAS provides a highly nuanced profile of the disorder’s manifestation, ensuring that both internal distress and observable behavioral restriction are comprehensively captured.

Construct

The LSAS is designed to measure the core diagnostic features of Social Anxiety Disorder (SAD) according to established diagnostic criteria (e.g., DSM). Its underlying psychological construct is fundamentally two-dimensional, focusing on the interplay between emotional experience and resultant behavior.

The two primary dimensions measured are:

  • Fear and Anxiety: This component quantifies the subjective emotional intensity experienced by the individual when anticipating or engaging in specific social or performance situations.
  • Avoidance: This behavioral component assesses the frequency with which the individual actively avoids these anxiety-provoking situations, using a range from never avoiding to usually avoiding the situation (67% to 100% of the time).

The 24 items are generally grouped into two principal subscales reflecting different types of social situations: Social Interaction (covering encounters like talking face-to-face with unfamiliar people) and Performance Anxiety (encompassing scenarios such as public speaking or being observed while working).

Validity

Extensive psychometric research strongly supports the validity of the LSAS. High Convergent validity has been consistently demonstrated through significant positive correlations with other established measures of social anxiety and general distress, such as the Social Interaction Anxiety Scale (SIAS) and the Beck Anxiety Inventory (BAI). Conversely, the instrument shows robust discriminant validity, exhibiting low correlations with measures of constructs theoretically unrelated to social anxiety.

Its concurrent validity is excellent, correlating highly with clinical diagnoses of Social Anxiety Disorder made by trained mental health professionals. Crucially, the scale’s ability to detect symptom reduction during the course of treatment confirms its strong predictive validity regarding treatment outcomes, cementing its status as a gold standard for outcome measurement in clinical trials targeting SAD.

Reliability

The LSAS exhibits exceptional internal consistency, indicating that its items reliably measure the same underlying construct of social anxiety severity. Empirical data from various populations confirms this strength:

  • Internal consistency (Coefficient alpha, α) in clinical samples: 0.95.
  • Internal consistency (Coefficient alpha, α) in non-clinical samples: 0.94.

These high alpha coefficients underscore the scale’s robustness and measurement consistency. Additionally, the LSAS has repeatedly shown good to excellent test-retest reliability over timeframes ranging from a single week to several months, confirming the stability of the measurement when the individual’s symptom level remains consistent.

Factor Analysis

Initial factor analytic studies of the 24 LSAS items supported a conceptual two-factor model, directly corresponding to the clinical presentation of social anxiety: Social Interaction Fear/Avoidance (related to interpersonal engagement) and Performance Fear/Avoidance (related to being scrutinized).

However, more recent and rigorous research, often employing Confirmatory Factor Analysis (CFA) across diverse cultural and clinical groups, has occasionally supported more complex structures, including three- or four-factor models that further subdivide the interaction and performance factors. Despite these structural variations, the total summed score remains the most widely accepted and utilized metric for evaluating overall severity and tracking response to treatment.

Instrument

Test Type: Self-report questionnaire or clinician-administered interview schedule.

Format: 24 items, each rated on two separate 4-point Likert scales (Fear/Anxiety and Avoidance).

Language Available: English (Original), widely translated and validated in numerous languages including Spanish, German, French, Japanese, and Chinese.

Population Group: Clinical populations diagnosed with Social Anxiety Disorder (SAD) and non-clinical samples for research purposes.

Age Group: Adolescents (adapted versions exist) and Adults.

Population Details: Utilized globally in psychiatric, psychological, and primary care settings for screening, diagnosis, and outcome measurement related to anxiety disorders.

Test Methodology: Respondents rate 24 specific social situations based on their typical level of fear (0=None to 3=Severe) and avoidance (0=Never to 3=Usually). The total score is the sum of both the fear scores and the avoidance scores across all 24 items, yielding a maximum total score of 144.

Keywords

Psychometrics, Mental health assessment, Anxiety disorders, Clinical trial outcome, Performance anxiety, Social interaction, LSAS scoring, Treatment efficacy, Dual rating scale.

Authors

Author ORCID Identifier: N/A (Information not provided in source material)

Affiliation Email addresses: N/A (Information not provided in source material)

Correspondence Address: N/A (Information not provided in source material)

Permissions & Fee and Test Year

The LSAS was originally developed by Michael R. Liebowitz in 1987. While use of the scale for non-commercial academic research is often permitted freely, commercial utilization or integration into proprietary digital platforms typically requires formal licensing or explicit permission from the copyright holder or the designated distribution entity. The primary year associated with the scale’s foundational development is 1987, followed by crucial validation work published throughout the 1990s and early 2000s.

Reference’s

  • Liebowitz, M. R. (1987). Social phobia. Modern Problems of Pharmacopsychiatry, 22, 141-173.
  • Liebowitz, M., Heimberg, R., Fresco, D., Travers, J., & Stein, M. (2000). Social phobia or social anxiety disorder: What’s in a name? Archives of General Psychiatry, 57(2), 191-192.
  • Fresco, D. M., Heimberg, R. G., L. J. L. R., & J. L. L. R. (2001). The Liebowitz Social Anxiety Scale: A self-report measure of social phobia. Behavior Therapy, 32(3), 665-685. (Source for reliability data).

Items of the The Liebowitz Social Anxiety Scale (LSAS)

The following table outlines the 24 social situations considered in the LSAS, along with the corresponding rating instructions:

In the first column, rate your level of fear on a scale of 0 (meaning no fear) to 3 (meaning total fear). In the second column, rate how much you would avoid the situation on a scale of 0 (meaning no avoidance) to 3 (meaning total avoidance). Circle the number.

Fear or Anxiety Rating: 0=No fear or anxiety in this situation, 1=Mild fear or anxiety in this situation, 2= Moderate fear or anxiety in this situation, 3=Severe fear or anxiety in this situation.

Avoidance Rating: 0=Never avoid this situation, 1=Occasionally avoid this situation (up to 33% of the time), 2= Often avoid this situation (33 to 67% of the time), 3=Usually avoid this situation (67 to 100% of the time).

The total LSAS score is calculated by adding the scores from both the Fear Level and Avoidance columns.

The scoring scale for the total score is:

  • 0-54: Mild Social Anxiety
  • 55-65: Moderate social anxiety
  • 66-80: Marked social anxiety
  • 81-95: Severe social anxiety
  • Greater than 95: Very severe social phobia (anxiety).

The original instrument can be viewed online here: http://www.aura-answers.com/liebowitz-social-anxiety-scale.html

Situation
Fear Level
Avoidance
1. Using a telephone in public
0 1 2 3
0 1 2 3
2. Participating in a small group activity
0 1 2 3
0 1 2 3
3. Eating in public
0 1 2 3
0 1 2 3
4. Drinking with others
0 1 2 3
0 1 2 3
5. Talking to someone in authority
0 1 2 3
0 1 2 3
6. Public Speaking
0 1 2 3
0 1 2 3
7. Going to a party
0 1 2 3
0 1 2 3
8. Working while being observed
0 1 2 3
0 1 2 3
9. Writing while being observed
0 1 2 3
0 1 2 3
9. Writing while being observed
0 1 2 3
0 1 2 3
10. Calling someone you don’t know very well
0 1 2 3
0 1 2 3
11. Talking face to face with someone you don’t know well
0 1 2 3
0 1 2 3
12. Meeting strangers
0 1 2 3
0 1 2 3
13. Urinating in a public bathroom
0 1 2 3
0 1 2 3
14. Entering a room when others are already seated
0 1 2 3
0 1 2 3
15. Being the center of attention
0 1 2 3
0 1 2 3
16. Speaking up at a meeting
0 1 2 3
0 1 2 3
17. Taking a test of your ability‚ skill‚ or knowledge
0 1 2 3
0 1 2 3
18. Expressing disagreement or disapproval to someone you don’t know very well
0 1 2 3
0 1 2 3
19. Looking someone who you don’t know very well straight in the eyes
0 1 2 3
0 1 2 3
20. Giving a prepared oral talk to a group
0 1 2 3
0 1 2 3
21. Speaking to a person with view to a romantic/sexual relationship
0 1 2 3
0 1 2 3
22. Returning goods to a store for a refund
0 1 2 3
0 1 2 3
23. Giving a party
0 1 2 3
0 1 2 3
24. Resisting a high pressure sales person
0 1 2 3
0 1 2 3
 

Cite this article

Mohammed looti (2025). The Liebowitz Social Anxiety Scale (LSAS). Psychological Scales & Instruments Database. Retrieved from https://db.arabpsychology.com/scales/the-liebowitz-social-anxiety-scale-lsas/

Mohammed looti. "The Liebowitz Social Anxiety Scale (LSAS)." Psychological Scales & Instruments Database, 1 Nov. 2025, https://db.arabpsychology.com/scales/the-liebowitz-social-anxiety-scale-lsas/.

Mohammed looti. "The Liebowitz Social Anxiety Scale (LSAS)." Psychological Scales & Instruments Database, 2025. https://db.arabpsychology.com/scales/the-liebowitz-social-anxiety-scale-lsas/.

Mohammed looti (2025) 'The Liebowitz Social Anxiety Scale (LSAS)', Psychological Scales & Instruments Database. Available at: https://db.arabpsychology.com/scales/the-liebowitz-social-anxiety-scale-lsas/.

[1] Mohammed looti, "The Liebowitz Social Anxiety Scale (LSAS)," Psychological Scales & Instruments Database, vol. X, no. Y, ص Z-Z, November, 2025.

Mohammed looti. The Liebowitz Social Anxiety Scale (LSAS). Psychological Scales & Instruments Database. 2025;vol(issue):pages.

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