SRS-2 Social Responsiveness Scale, Second Edition


by John N. Constantino, MD

Purpose: Identifies the presence and severity of social impairment within the autism spectrum and differentiates it from that which occurs in other disorders

Age: 2.5 years through adulthood


Time: 15 to 20 minutes

Format: Parent and/or teacher rating scales for ages 2.5 through 18 yrs

Scores: Total Scores: Scores for 5 Treatment subscales: Scores for DSM-5 compatible subscales

Norms: Provided separately for each form; based on sample of 1,906 individuals (4,709 ratings); nationally representative in regard to gender, ethnicity, education, and geographic region; separated by rater type as well as age and gender of individual rated



Do the symptoms indicate an autism spectrum disorder, a social communication disorder, or something else?
Find out with the SRS-2.


The second edition of this highly regarded autism assessment offers the convenience of a screener and the power of a diagnostic tool. Completed in just 15 to 20 minutes, the SRS-2 identifies social impairment associated with autism spectrum disorders (ASDs) and quantifies its severity. It's sensitive enough to detect even subtle symptoms, yet specific enough to differentiate clinical groups, both within the autism spectrum and between ASD and other disorders. And, with an expanded age range, the SRS-2 can be used to monitor symptoms throughout the lifespan.

Assess Social Impairment in Natural Settings--and From More Than One Perspective

The SRS-2 offers four forms, each with 65 items, and each for a specific age group:

  • School-Age Form
    For ages 4 through 18, completed by parent or teacher (composed of the same items that appeared on the original SRS)

  • Preschool Form
    For ages 2.5 to 4.5, completed by parent or teacher

  • Adult Form
    For ages 19 and up, completed by a relative or friend

  • Adult Self-Report Form
    A self-report option for ages 19 and up 

While some autism tests require trained professionals to code behaviours observed in clinical settings, the SRS-2 asks teachers, parents, and others to rate symptoms that they've noticed over time--at home, in the classroom, or elsewhere. Raters evaluate symptoms using a quantitative scale representing a range of severity.


This approach--multiple perspectives on behaviour observed in natural settings and rated on a graduated response scale--uncovers a wide range of symptoms, including those that are relatively subtle. In fact, the SRS-2 often reveals aspects of social functioning that might be missed in a clinical context, using a test with a "yes-or-no" response format. This is important because even mild social impairment can have an adverse effect on children and adults. Numerous independent studies demonstrate that the SRS-2 is unmatched in its ability to measure severity of social impairment in the mildest, and most common, forms of ASD--including Social Communication Disorder, a new diagnosis proposed for inclusion in DSM-5.

Use the SRS-2 Treatment Subscales to Guide Intervention

In addition to a Total score reflecting severity of social deficits in the autism spectrum, the SRS-2 generates scores for five Treatment Subscales:

  • Social Awareness

  • Social Cognition

  • Social Communication

  • Social Motivation

  • Restricted Interests and Repetitive Behaviour

Although not used for screening or diagnosis, subscale scores are helpful in designing and evaluating treatment programmes.

Similarly, the SRS-2 unlimited-use scoring program gives you a detailed report with useful descriptive information that can inform intervention.

Compare Symptoms to Proposed DSM-5 Criteria for ASD

In addition to the Treatment Subscales described above, the SRS-2 offers two new DSM-5 Compatible Subscales:

  • Social Communication and Interaction

  • Restricted Interests and Repetitive Behavior

Scores on these subscales make it easy to compare your client's symptoms to proposed DSM-5 diagnostic criteria for autism spectrum disorder. Such comparisons clearly inform diagnosis--they help you determine whether the individual meets the most current diagnostic criteria for ASD.

Simplify Differential Diagnosis

The SRS-2 is supported by a multitude of independent, peer- reviewed studies conducted in schools and clinics throughout the world, involving diverse populations and diagnostic groups. These studies show that the SRS-2 discriminates both within the autism spectrum and between ASD and other disorders--which makes the test highly useful for differential diagnosis. When the SRS-2 reveals social deficits associated with autism, it tells you exactly where these symptoms fall on the spectrum. And when the test indicates that autism is not present, it often points to other conditions in which social impairment plays a role.

Rely on the SRS-2 in Educational, Clinical, and Research Settings

The brevity and sensitivity of the SRS-2 make it highly useful for a variety of assessment needs. Its quantitative nature and wide age range make it ideal for measuring response to intervention over time. And its reliance on the day-to-day observations of parents and teachers makes it easy to use in clinical, research, and educational settings. It is crucial in all of these settings to isolate autism spectrum disorders from other psychiatric conditions, and the SRS-2 is well suited to this purpose. It clearly distinguishes the social impairment characteristic of ASD from that seen in ADHD, anxiety, and other diagnoses.

New in the SRS-2

  • Unparalleled evidence of validity--across the lifespan and across cultures, nationalities, and clinical groups

  • Expanded age range--2.5 years through adulthood

  • Four forms: School-Age, Preschool, Adult, and Adult Self-Report

  • Current, nationally representative norms

  • Updated interpretive guidelines

  • Unlimited-use scoring software

"While many autism assessments focus on severe abnormalities, observed in the laboratory or office, the SRS-2 looks at reciprocal social behaviour as it occurs in natural, everyday settings. The test covers the full range of social functioning, from high competence to substantial impairment. Because impairment in reciprocal social behaviour is the defining characteristic of autism spectrum disorders, it's important to note that the SRS-2 detects even slight (subclinical) deficits, along with subtle changes in severity over the course of development. SRS-2 scores of individuals with autism spectrum disorders are consistently higher than those of individuals with other psychological or developmental disorders. Since these group differences are generally pronounced, SRS-2 measurements can contribute substantially to differential diagnosis."


John N. Constantino, MD

Author of the SRS-2

Professor of Psychiatry and Pediatrics

Director, William Greenleaf Eliot Division of Child and Adolescent Psychiatry

Washington University School of Medicine



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