LSAS: Scoring Guide and Severity Cutoffs — Liebowitz Social Anxiety Scale
The LSAS is a 24-item rating scale assessing Fear and Avoidance across 13 performance and 11 social interaction situations. Total score 0–144. Severity: 0–29 minimal, 30–49 mild, 50–64 moderate, 65–79 marked, 80–94 severe, ≥95 very severe. Liebowitz (1987).
LSAS Total Score Interpreter
Clinically meaningful symptoms. Above the screening cutoff of 30 for social anxiety disorder (Mennin 2002); formal assessment is appropriate.
24 items, each rated 0–3 for fear/anxiety and 0–3 for avoidance across 13 performance and 11 social-interaction situations. Higher totals indicate more pervasive social anxiety. Educational reference — not a diagnosis.
| Total score | Interpretation |
|---|---|
| 95+ | Very severe social anxietyPervasive fear and avoidance across nearly all social and performance situations. Well above the generalized-subtype screening cutoff of 60 (Mennin 2002); clinical evaluation is warranted. |
| 80–94 | Severe social anxietyMarked impairment across most situations. Comprehensive clinician assessment is indicated. |
| 65–79 | Marked social anxietySubstantial fear and avoidance. Above the generalized-subtype cutoff of 60 (Mennin 2002), suggesting broad rather than circumscribed social fears. |
| 50–64 | Moderate social anxietyClinically meaningful symptoms. Above the screening cutoff of 30 for social anxiety disorder (Mennin 2002); formal assessment is appropriate. |
| 0–49 | No/minimal social anxietyBelow or near the screening cutoff of 30 (Mennin 2002). Symptoms are unlikely to meet criteria for social anxiety disorder, though a low score does not rule it out. |
Empirical screening cutoffs of 30 (social anxiety disorder) and 60 (generalized subtype) are from Mennin et al. (2002), validated for the self-report form by Rytwinski et al. (2009). The descriptive severity bands below are commonly-used clinical conventions, not thresholds from a single validation study. Educational reference only — not a diagnostic tool.
The LSAS is a 24-item rating scale assessing Fear and Avoidance across 13 performance and 11 social interaction situations. Total score 0–144. Primary endpoint in social anxiety disorder pharmacotherapy trials. Liebowitz (1987).
What is the Liebowitz Social Anxiety Scale?
The Liebowitz Social Anxiety Scale (LSAS) is a clinician-administered rating scale developed by Michael Liebowitz in 1987 to detailedly assess the range of social situations that may be feared or avoided by individuals with social anxiety disorder (SAD), also known as social phobia. It was developed specifically to capture the broad spectrum of social situations relevant to SAD, from performance situations (public speaking, eating in public) to social interaction situations (parties, meeting strangers, maintaining eye contact).
The LSAS consists of 24 social situations, each rated on two independent dimensions: Fear/Anxiety (0=none to 3=severe) and Avoidance (0=never to 3=usually). This produces 4 subscale scores plus a total score (0–144). The LSAS-SR (self-report version) has been shown to have equivalent psychometric properties to the clinician version and is commonly used in research settings.
The LSAS is the primary or co-primary endpoint in most social anxiety disorder pharmacotherapy trials, including those supporting FDA approval of SSRIs and SNRIs for SAD. Treatment response is typically defined as ≥30% reduction in total LSAS from baseline. Remission is often defined as LSAS total ≤30.
LSAS Score Interpreter
Enter your LSAS total score (0–144) to interpret social anxiety severity.
Sum of all Fear (0–72) and Avoidance (0–72) ratings across 24 situations. Total range: 0–144.
LSAS © Liebowitz (1987). Widely available for clinical and research use. This interpreter does not replace clinician-administered assessment.
LSAS Total Score Reference
The LSAS total score is the sum of all 48 ratings — fear/anxiety and avoidance across all 24 situations — and ranges from 0 to 144. In social anxiety disorder trials, treatment response is commonly defined as a reduction of at least 30% from baseline. The two empirically validated screening anchors come from Mennin et al. (1999/2002): a total of 30 best identifies social anxiety disorder, and 60 best identifies its generalized subtype.
Total Score Severity Reference
The total score is most often read against two empirical screening cutoffs plus a descriptive severity ladder. The cutoffs of 30 and 60 are ROC-derived (Mennin et al. 2002; replicated for the self-report form by Rytwinski et al. 2009). The severity labels below are a commonly-used clinical convention rather than thresholds from a single validation study, so treat the band edges as approximate.
| Total score | Interpretation |
|---|---|
| 0–29 | No/minimal social anxiety (below the screening cutoff) |
| 30–49 | Mild — at or above the screening cutoff of 30 for social anxiety disorder |
| 50–64 | Moderate |
| 65–79 | Marked (at or above 60, the cutoff for the generalized subtype) |
| 80–94 | Severe |
| ≥95 | Very severe |
Four Subscales
The LSAS yields four subscale scores in addition to the total. Each situation is rated for fear/anxiety (0–3) and avoidance (0–3), and the 24 situations split into 13 performance and 11 social-interaction situations. The four subscales are formed by crossing the two rating dimensions with the two situation domains.
| Subscale | Items | Range |
|---|---|---|
| Total fear/anxiety | 24 | 0–72 |
| Total avoidance | 24 | 0–72 |
| Performance fear/anxiety | 13 | 0–39 |
| Performance avoidance | 13 | 0–39 |
| Social-interaction fear/anxiety | 11 | 0–33 |
| Social-interaction avoidance | 11 | 0–33 |
Heimberg et al. (1999) noted that, in clinical samples, the fear and avoidance subscales correlate highly and may not be sufficiently distinct, so the total score is generally the most reliable summary index.
LSAS Situation Categories
The 24 LSAS situations span two broad domains. Each is rated independently for Fear and Avoidance.
Performance Situations (13)
Performance situations involve being observed or evaluated while doing something. The 13 LSAS performance items include: telephoning in public; participating in small groups; eating in public; drinking in public; talking to people in authority; acting, performing, or giving a talk in front of an audience; working while being observed; writing while being observed; entering a room when others are already seated; speaking up at a meeting; taking a test of ability or competence; giving a report to a group; and trying to pick up someone.
Social Interaction Situations (11)
Social interaction situations involve initiating or sustaining contact with others. The 11 LSAS social-interaction items include: going to a party; meeting strangers; using a public restroom; talking with people you do not know well; expressing disagreement or disapproval to people you do not know well; looking at people you do not know well in the eyes; returning goods to a store; giving a party; resisting a high-pressure salesperson; talking face-to-face with someone you do not know well; and being the centre of attention.
Social Anxiety Assessment Tools
The LSAS is one of several validated instruments for social anxiety, and clinicians often pair or substitute it depending on setting and goal:
- Social Phobia Inventory (SPIN) — a 17-item self-report screen; brief and convenient for routine intake.
- Social Interaction Anxiety Scale (SIAS) and Social Phobia Scale (SPS) — companion measures separating interaction-based from scrutiny-based fears.
- Brief Fear of Negative Evaluation (BFNE) — a focused measure of the core cognitive feature of social anxiety.
- Mini-SPIN — a 3-item ultra-brief screen for high-volume primary care.
The LSAS remains the field standard for treatment trials because it covers both fear and avoidance across a broad range of situations and is sensitive to change over time (Heimberg et al. 1999).
Social Anxiety Outcome Tracking in HiBoop
LSAS alongside GAD-7, PHQ-9, and PCL-5, integrated anxiety disorder outcome monitoring for outpatient, IOP, and residential programs.
References
- 1.Liebowitz MR. Social phobia. Mod Probl Pharmacopsychiatry. 1987;22:141-173.View source
- 2.Heimberg RG, Horner KJ, Juster HR, et al. Psychometric properties of the Liebowitz Social Anxiety Scale. Psychol Med. 1999;29(1):199-212.View source
- 3.Mennin DS, Fresco DM, Heimberg RG, et al. Screening for social anxiety disorder in the clinical setting: using the Liebowitz Social Anxiety Scale. J Anxiety Disord. 2002;16(6):661-673.View source
- 4.Rytwinski NK, Fresco DM, Heimberg RG, et al. Screening for social anxiety disorder with the self-report version of the Liebowitz Social Anxiety Scale. Depress Anxiety. 2009;26(1):34-38.View source
Frequently Asked Questions
What is a high LSAS score?
On the LSAS total score (range 0–144), higher numbers reflect more pervasive social fear and avoidance. A widely used descriptive convention treats scores at or above 65 as marked, 80 as severe, and 95 as very severe social anxiety. Empirically, Mennin et al. (2002) found a total of 60 best identified the generalized subtype of social anxiety disorder.
Is the LSAS self-report or clinician-administered?
Both versions exist. The original LSAS is clinician-administered, with an assessor rating each situation. A self-report version (LSAS-SR) is also widely used; Rytwinski et al. (2009) found the same screening cutoffs (30 and 60) apply, supporting it as an accurate, lower-cost alternative.
What LSAS score suggests social anxiety disorder?
Mennin et al. (2002) reported that a total LSAS score of 30 provided the best balance of sensitivity and specificity for identifying social anxiety disorder, and a score of 60 best identified the generalized subtype. These are screening thresholds, not a diagnosis — a structured clinical interview is required to confirm.
How is the LSAS scored?
Each of the 24 situations is rated on two 0–3 scales: fear/anxiety (0 = none to 3 = severe) and avoidance (0 = never to 3 = usually, 67–100%). Summing all 48 ratings yields a total of 0–144, alongside four subscale scores (fear and avoidance, each split into performance and social-interaction situations).
What is considered remission or treatment response on the LSAS?
In social anxiety disorder trials the LSAS is a primary outcome. Treatment response is commonly defined as a reduction of at least 30% in the total score from baseline. Cutoffs for remission vary across studies and have not converged on a single agreed value, so remission thresholds should be interpreted against the specific study or instrument version used.
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