Normal: ≤59 | Mild: 60-65 | Moderate: 66-75 | Severe: ≥76
The SRS-2 measures autism symptom severity using T-scores (mean=50, SD=10). Higher scores indicate greater social impairment. See detailed interpretations and clinical examples below.
The Social Responsiveness Scale, Second Edition (SRS-2) is a 65-item rating scale used to measure the severity of autism spectrum disorder (ASD) symptoms as they occur in natural social settings. This comprehensive guide provides detailed T-score interpretation, clinical examples, and practical guidance for understanding SRS-2 results.
The SRS-2 has four age-specific forms designed to assess social responsiveness across the lifespan:
The SRS-2 yields several types of scores to provide a comprehensive assessment of autism-related symptoms:
SRS-2 raw scores are converted to T-scores with a mean of 50 and a standard deviation of 10. T-scores allow for comparison across different age groups and genders, making them the standard metric for interpretation.
| T-Score Range | Classification | Severity Level | Interpretation | ASD Likelihood |
|---|---|---|---|---|
| ≤ 59 | Within normal limits | No concern | No clinically significant social deficits | Unlikely |
| 60-65 | Mild range | Mild | Mild deficits in reciprocal social behavior | Possible (subclinical traits) |
| 66-75 | Moderate range | Moderate | Clinically significant deficits interfering with daily interactions | Strongly associated with ASD |
| ≥ 76 | Severe range | Severe | Severe deficits with enduring interference in social functioning | Very strongly associated with ASD diagnosis |
Download: SRS-2 T-Score Quick Reference Chart (PDF)
The Total Score is the most reliable indicator and provides an overall measure of ASD symptom severity. It’s derived from the sum of responses to all 65 items on the SRS-2 and is particularly useful for screening purposes and tracking changes over time or in response to interventions.
Important Note: The Total Score is a powerful screening indicator, but it must always be interpreted as part of a comprehensive diagnostic assessment including clinical observation, developmental history, parent interviews, and other standardized measures.
Understanding the relationship between raw scores and T-scores is essential for proper interpretation:
Note: T-score conversion tables are gender and age-specific. Always consult the official SRS-2 manual or scoring software for precise conversions based on the individual’s demographic characteristics.
The SRS-2 includes two scales that align directly with DSM-5 diagnostic criteria for autism spectrum disorder:
This scale aligns with DSM-5 Criterion A for ASD: persistent deficits in social communication and social interaction.
Clinical Use: Elevated SCI scores with normal RRB scores may indicate social communication disorder rather than autism, requiring differential diagnosis.
This scale corresponds to DSM-5 Criterion B for ASD: restricted, repetitive patterns of behavior, interests, or activities.
Clinical Use: Both SCI and RRB scales must show elevation for a complete autism profile consistent with DSM-5 criteria.
The five treatment subscales provide detailed information about specific areas of social functioning, guiding targeted intervention planning:
Treatment Planning: These subscales identify specific intervention targets. For example, high Social Awareness but low Social Cognition scores suggest focusing on perspective-taking and social interpretation skills rather than basic social perception.
In clinical and research settings, the SRS-2 serves multiple valuable purposes:
Critical Reminder: While the SRS-2 is a powerful and well-validated tool, it should never be used in isolation to diagnose ASD. A comprehensive evaluation by qualified professionals (psychologists, developmental pediatricians, psychiatrists) is necessary for formal diagnosis.
Understanding how the SRS-2 compares to other autism assessment tools helps clinicians select appropriate measures:
| Assessment | Type | Administration Time | Age Range | Primary Purpose |
|---|---|---|---|---|
| SRS-2 | Rating scale | 15-20 minutes | 2.5 years-adult | Screening & severity measurement |
| ADOS-2 | Structured observation | 40-60 minutes | 12 months-adult | Diagnostic observation (gold standard) |
| ADI-R | Parent interview | 1.5-2.5 hours | 2 years-adult | Comprehensive diagnostic interview |
| SCQ | Screening questionnaire | 10 minutes | 4+ years | Brief screening |
| M-CHAT-R/F | Screening checklist | 5-10 minutes | 16-30 months | Toddler screening |
When to Use SRS-2: The SRS-2 is ideal for initial screening, tracking treatment response, measuring symptom severity in research, and obtaining quantitative data from multiple informants. For definitive diagnosis, combine with ADOS-2 and/or ADI-R.
Profile: 8-year-old male, teacher-rated
Total T-Score: 63
Subscales: Social Communication: 65, Social Awareness: 61, RRB: 58
Interpretation: Scores fall in the mild range, suggesting subclinical autistic traits. The child shows some difficulty with social communication and awareness but relatively typical restricted interests. This profile might indicate broader autism phenotype or mild social communication challenges.
Recommendations: Social skills group, continued monitoring, consider full evaluation if concerns persist or worsen.
Profile: 12-year-old female, parent-rated
Total T-Score: 71
Subscales: Social Cognition: 74, Social Motivation: 69, RRB: 70
Interpretation: Scores indicate clinically significant deficits strongly associated with ASD. Particular challenges with social cognition (understanding others’ perspectives) and restricted interests. Profile consistent with autism diagnosis.
Recommendations: Comprehensive diagnostic evaluation (ADOS-2, cognitive testing), consideration of social skills intervention, occupational therapy for sensory issues, IEP evaluation.
Profile: 5-year-old male, parent and teacher consensus
Total T-Score: 82 (parent), 79 (teacher)
Subscales: All subscales elevated (range 76-85)
Interpretation: Scores in severe range across all domains, with agreement between multiple informants. Very strong association with ASD diagnosis. Pervasive deficits in social functioning and marked repetitive behaviors/restricted interests.
Recommendations: Immediate comprehensive diagnostic evaluation, early intensive behavioral intervention (EIBI/ABA), speech-language therapy, occupational therapy, family support services, special education services.
T-scores of 59 or below are considered within normal limits, indicating no clinically significant concerns for autism spectrum disorder. These scores suggest the individual’s social responsiveness is typical for their age and gender.
A T-score of 65 falls in the mild range (60-65), indicating mild deficits in reciprocal social behavior that are clinically significant. This may be associated with subclinical autistic traits, broader autism phenotype, or warrant further comprehensive assessment.
A T-score of 70 falls in the moderate range (66-75), indicating clinically significant deficits in social behavior that substantially interfere with everyday interactions. This score is strongly associated with a clinical diagnosis of autism spectrum disorder and suggests the need for comprehensive evaluation and intervention.
The SRS-2 does not have a single diagnostic cutoff score. However, T-scores of 60 or above indicate clinically significant concerns. Scores of 66 or higher (moderate range) are strongly associated with ASD diagnosis, and scores of 76 or higher (severe range) are very strongly associated with clinical diagnosis of autism.
The SRS-2 demonstrates high accuracy as a screening tool, with sensitivity of approximately 93% and specificity of 91% for distinguishing individuals with ASD from typically developing individuals. However, it should not be used alone for diagnosis and must be combined with comprehensive clinical evaluation.
No, the SRS-2 should never be used in isolation to diagnose autism spectrum disorder. It is a screening and severity measure that must be used as part of a comprehensive diagnostic evaluation including clinical observation (ADOS-2), developmental history (ADI-R), cognitive assessment, and clinical judgment by qualified professionals.
Raw scores are the sum of all 65 item responses (ranging from 0-195), while T-scores are standardized scores with a mean of 50 and standard deviation of 10. T-scores are age- and gender-specific conversions of raw scores that allow for meaningful comparison across different demographic groups.
The SRS-2 typically takes 15-20 minutes to complete. The rater should be someone familiar with the individual’s behavior over the past 6 months in natural social settings.
Yes, SRS-2 scores can change over time in response to development, intervention, environmental changes, or changes in symptom severity. This makes the SRS-2 valuable for tracking treatment effectiveness and monitoring developmental trajectories. However, autism itself is a lifelong condition, so while symptom expression may change, core characteristics typically persist.
Discrepancies between parent and teacher ratings are common and can be clinically meaningful. They may reflect: context-dependent behavior (home vs. school), different social demands in each setting, varying levels of structure and support, different rater perspectives or expectations, or the child’s ability to mask difficulties in certain environments. Both perspectives provide valuable information.
The SRS-2 is a well-validated, psychometrically sound tool for assessing autism spectrum disorder symptoms across the lifespan. Understanding T-score interpretation, considering contextual factors, and using the instrument as part of comprehensive assessment are essential for clinical utility.
Proper interpretation requires consideration of age and gender norms, cultural context, comorbid conditions, and multiple informant perspectives. While the SRS-2 provides valuable quantitative data about social responsiveness and autism symptom severity, it must always be interpreted by qualified professionals within the context of a comprehensive diagnostic evaluation.
For optimal clinical use, combine SRS-2 results with direct observation (ADOS-2), developmental history (ADI-R), cognitive assessment, and thorough clinical judgment to make accurate diagnostic and treatment planning decisions.
Medical Disclaimer: This article is for informational purposes only and should not be considered medical advice. The SRS-2 must be administered and interpreted by qualified healthcare professionals. Always consult with licensed psychologists, developmental pediatricians, or psychiatrists for autism assessment and diagnosis.
Last Updated: November 2025 | Article Reviewed By: Clinical Psychology Specialists
Tool Type Age Range Administration Time Administrator Format Key Features Strengths Limitations Diagnostic Value ADOS-2 (Autism Diagnostic Observation Schedule, 2nd Edition) Observational assessment All ages (includes modules for different developmental levels) 30-60 minutes Trained...
The Social Responsiveness Scale, Second Edition (SRS-2), is a 65-item rating scale used to evaluate ASD symptom severity in natural social settings. It includes forms for different age groups and yields several scores. While the Total Score is crucial, interpreting subscale profiles and considering context is essential for accurate assessment and intervention planning.
ToolTypeAge RangeAdministration TimeAdministratorFormatKey FeaturesStrengthsLimitationsDiagnostic ValueADOS-2 (Autism Diagnostic Observation Schedule, 2nd Edition)Observational assessmentAll ages (includes modules…
The Social Responsiveness Scale, Second Edition (SRS-2) is a comprehensive tool used for assessing autism…
Intro The RAADS-R (Ritvo Autism Asperger Diagnostic Scale-Revised) test is a widely recognized tool. It…
TL;DR A Christmas-themed sensory bin with sand and mini figurines (Santa, sleigh, reindeer, snowmen, trees,…
🚽 Toilet Training for Autistic Boys Made Easy Interactive visual guide designed specifically for children…
Early detection of autism spectrum disorder (ASD) in toddlers can dramatically improve developmental outcomes. However,…
This website uses cookies.
View Comments