LSAS: Scoring Guide and Severity Cutoffs · Liebowitz Social Anxiety Scale
The LSAS (Liebowitz Social Anxiety Scale) is a 24-item clinician-administered rating scale, with a self-report version (LSAS-SR), that measures fear and avoidance across 13 performance and 11 social interaction situations in social anxiety disorder. Total score 0–144; Mennin et al. (2002) cutoffs are 30 for social anxiety disorder and 60 for its generalized subtype.
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. |
| 30–49 | Mild social anxietyAt or above the screening cutoff of 30 for social anxiety disorder (Mennin 2002) but below the generalized-subtype cutoff of 60; formal assessment is appropriate. |
| 0–29 | No/minimal social anxietyBelow 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.
For reference only — not an assessment, diagnosis, or medical advice. This page provides scoring reference material; interpretation and clinical decisions rest with a qualified clinician.
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 the LSAS measures
The Liebowitz Social Anxiety Scale (LSAS) is a clinician-administered rating scale developed by Michael Liebowitz in 1987 to assess in detail 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 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.
How to administer the LSAS
The original LSAS is clinician-administered, with an assessor rating each situation. 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 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).
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.
LSAS scoring and interpretation
Sum of all Fear (0–72) and Avoidance (0–72) ratings across 24 situations. Total range: 0–144. This produces 4 subscale scores plus a total score.
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. Remission cutoffs vary across studies and have not converged on a single agreed value. The two empirically validated screening anchors come from Mennin et al. (2002): a total of 30 best identifies social anxiety disorder, and 60 best identifies its generalized subtype.
LSAS © Michael R. Liebowitz (1987). Use outside individual clinical or research settings requires permission from the copyright holder. This interpreter does not replace clinician-administered assessment.
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.
Psychometric properties
- Reliability and validity: in 382 patients from social phobia treatment studies, the LSAS and its subscales showed excellent internal consistency and convergent validity with other measures of social anxiety and avoidance, with correlations tending to be larger than those with depression measures (Heimberg et al., 1999).
- Treatment sensitivity: the LSAS was sensitive to pharmacological treatment over time and in comparison to double-blind pill placebo (Heimberg et al., 1999).
- Screening accuracy: ROC analysis in 364 patients with SAD and 34 controls found cutoffs of 30 (SAD) and 60 (generalized subtype) gave the best balance of sensitivity and specificity (Mennin et al., 2002). The same cutoffs were optimal for the self-report LSAS-SR (Rytwinski et al., 2009).
Limitations
- Screening, not diagnosis. Cutoffs of 30 and 60 are screening thresholds; a structured clinical interview is required to confirm social anxiety disorder.
- Subscale overlap. The fear and avoidance subscales may not be sufficiently distinct in clinical samples (Heimberg et al., 1999), so the total score is the most reliable summary.
- Severity bands are conventions. The descriptive bands above 30 (moderate, marked, severe, very severe) are not thresholds from a single validation study.
- Validated samples. Heimberg et al. (1999) called for further study in samples with severe social phobia and in community samples.
Social anxiety assessment tools
The LSAS is one of several validated measures 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).
Anxiety Outcome Tracking in HiBoop
HiBoop supports measurement-based care for anxiety with the GAD-7 and PSWQ, alongside the PHQ-9 and PCL-5, for outpatient, IOP, and residential programs.
This library is an academic and clinical reference. A scale described here is not necessarily offered in HiBoop; each page says whether it is.
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 scale version used.
Bill this assessment
In the US, the LSAS: Scoring Guide and Severity Cutoffs · Liebowitz Social Anxiety Scale is usually billed under these CPT codes. Payer rules vary.
Using this assessment in practice
For clinicians
Send it as a gentle check-in before the session. The score is waiting when you open the chart, and the trend builds itself.
For individuals
This page is a clinical reference, not a diagnostic tool. If you have concerns about your own symptoms, bring this information to a qualified mental health professional.
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
Last reviewed: Jun 3, 2026
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