ADI-R:
The Autism Diagnostic Interview, Revised
When a child is being evaluated for autism, the diagnostic process is rarely just onetest. The ADI-R is one of the most important and comprehensive tools in that process – a structured interview that gives clinicians deep insight into your child's developmental history, directly from the people who know them best: you.
What Is the ADI-R?
The Autism Diagnostic Interview, Revised (ADI-R) is a standardized, semi-structured interview conducted with parents or caregivers of an individual being evaluated for autism spectrum disorder (ASD). Developed by researchers Michael Rutter, Ann LeCouteur, and Catherine Lord, and first published in 1994, the ADI-R is recognized as one of the gold standard tools in autism diagnosis – used extensively in both clinical practice and international research for decades.
Unlike observational tools such as the ADOS-2, the ADI-R focuses entirely on the developmental history and behavioral patterns of the individual, as observed by the parent or caregiver over time. This makes it uniquely powerful for capturing a full, longitudinal picture of how autism has manifested across different settings and stages of development.
The ADI-R can be used with individuals of any age, as long as their mental age is above 2 years. It is most commonly used with children aged 4 and above and can also be used with adults.
How Does the ADI-R Work?
Questions focus on three core functional domains that are central to the diagnosis of autism spectrum disorder:
Language and Communication:
Reciprocal Social Interactions:
Restricted and Repetitive Behaviors:
The clinician scores each response based on defined criteria, and the resulting scores are compared to established thresholds for autism spectrum disorder diagnosis.
What Does the ADI-R Assess?
The ADI-R captures a detailed picture of your child's behavioral and developmental history across several key areas:
Early developmental milestones:
Social interaction pattern:
Communication history:
Repetitive and restricted behaviors:
Behavioral concerns:
ADI-R and ADOS-2: The Gold Standard Combination
The ADI-R and ADOS-2 are widely considered the gold standard combination for autism diagnosis. While the ADOS-2 provides direct, standardized observation of your child's behavior in a clinical setting, the ADI-R captures the developmental history and broader behavioral picture that only a parent or caregiver can provide.
Together, they give clinicians the most complete and accurate foundation for diagnosing autism spectrum disorder – combining what can be observed directly with what has been observed over a lifetime. Research supports using both tools together for improved diagnostic accuracy compared to using either tool alone.
Who Administers the ADI-R?
The ADI-R must be administered by a trained clinician who has completed intensivetraining in the tool. This typically includes licensed psychologists, neuropsychologists, and other qualified diagnostic professionals.
At Behavior Frontiers, ADI-R interviews may be conducted by licensed professionalsthrough our trusted network of diagnostic partners – as part of a comprehensive autismevaluation for families who are ready to begin ABA therapy with Behavior Frontiersfollowing a diagnosis.
What to Expect During an ADI-R Interview
The ADI-R interview is conducted with the parent or caregiver, and your child is not required to be present for this part of the evaluation. Here's what to expect:
ADI-R and the Path to ABA Therapy
At Behavior Frontiers, every child's ABA therapy plan begins with a thorough understanding of who they are – built on comprehensive assessments which may include results from the ADI-R, and developed by a licensed BCBA to address each child's specific strengths, challenges, and goals.
For families who are ready to begin their ABA journey with Behavior Frontiers, we can connect you with our trusted network of licensed diagnostic partners – with autism evaluations available in as little as 4 weeks, and a seamless transition into care onceyour child receives their diagnosis.
FAQs
The ADI-R (Autism Diagnostic Interview, Revised) is a standardized, semi-structured interview conducted with parents or caregivers of an individual being evaluated for autism spectrum disorder. It captures a comprehensive picture of the individual's developmental history and behavioral patterns across three core domains: language and communication, reciprocal social interactions, and restricted and repetitive behaviors.
The ADI-R typically takes 1.5 to 2.5 hours to complete.
No. The ADI-R is conducted with the parent or caregiver. Your child does not need to be present for this part of the evaluation.
The ADI-R can be used with individuals of any age as long as their mental age is above 2 years, 0 months. It is most commonly used with children aged 4 and above and can also be used with adults.
No. The ADI-R is one part of a comprehensive autism evaluation. It is most commonly used alongside the ADOS-2 – together forming the gold standard combination for autism diagnosis.
The ADOS-2 involves direct observation of your child by a trained clinician. The ADI-R is a parent interview that captures your child's developmental history and behavioral patterns over time. Together, they provide the most complete and accurate picture for autism diagnosis.
Behavior Frontiers connects families who are ready to begin ABA therapy with us, to our trusted network of licensed diagnostic partners – who conduct comprehensive autism evaluations which may include the ADI-R and ADOS-2. Evaluations are available in as little as 4 weeks, with a seamless transition into ABA therapy with Behavior Frontiers once your child receives their diagnosis.
