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Autism Diagnostic Interview-Revised

by Michael Rutter, MD, FRS, Ann LeCouteur, MBBS, and Catherine Lord, PhD - Ages Children and adults with a mental age above 2.0 years

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  • Testing Time: 90-150 minutes, including scoring
  • Standardized interview and response coding
  • Complete ADI-R kit includes: 10 Interview Booklets; 10 Comprehensive Algorithm Forms; Manual. (2003)
  • Qualification Level: B
Used in research for decades, the Autism Diagnostic Interview-Revised provides a thorough assessment of individuals suspected of having autism or other autism spectrum disorders via a comprehensive interview. The ADI-R has proven highly useful for formal diagnosis as well as treatment and educational planning.
To administer the ADI-R, an experienced clinical interviewer questions a parent or caretaker who is familiar with the developmental history and current behavior of the individual being evaluated. The interview can be used to assess both children and adults, as long as their mental age is above 2 years, 0 months.
Evaluate Three Functional Domains
Composed of 93 items, the ADI-R focuses on three functional domains:
  • Language/Communication
  • Reciprocal Social Interactions
  • Restricted, Repetitive, and Stereotyped Behaviors and Interests
Results can now be scored and interpreted using a single convenient form rather than the five forms previously required. The Comprehensive Algorithm Form (W-382E) allows you to calculate and interpret any one of five age-specific ADI-R algorithms (two Diagnostic Algorithms based on developmental history and used for formal diagnosis, and three Current Behavior Algorithms focusing on present functioning and used for treatment and educational planning). The algorithms themselves have not changed; the revised form simply replaces the five forms previously needed to calculate the algorithms.
Support Diagnosis or Determine Clinical Needs
Because the ADI-R is an interview rather than a test, and because it focuses on behaviors that are rare in unaffected individuals, it provides categorical results rather than scales or norms. Results can be used to support a diagnosis of autism or to determine the clinical needs of various groups in which a high rate of autism spectrum disorders might be expected (e.g., individuals with severe language impairments or certain medical conditions, children with congenital blindness, and youngsters suffering from institutional deprivation). The ADI-R has proven very effective in differentiating autism from other developmental disorders and in assessing syndrome boundaries, identifying new subgroups, and quantifying autistic symptomatology. Extensive use of the ADI-R in the international research community has provided strong evidence of the reliability and validity of its categorical results.
Complete ADI-R kit includes: 10 Interview Booklets; 10 Comprehensive Algorithm Forms; Manual.
TM938 -  ADI-R Complete Kit $320.00 
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TMF939 -  ADI-R Interview Booklet (5 pack) $116.00 
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TMF940 -  ADI-R Comprehensive Algorithm Form (10 pack) $23.00 
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