The interview covers the referred individual's full developmental history, is usually conducted in an office, home or other quiet setting by a psychologist, and generally takes one to two hours.
[3] Because the ADI-R is an investigator-based interview, the questions are very open-ended and the investigator is able to obtain all of the information required to determine a valid rating for each behavior.
Also, taking part in this interview helps parents obtain a better understanding of autism spectrum disorder and the factors that lead to a diagnosis.
[1] Finally, the assessment contains questions about behaviors such as self-injury, aggression, and over activity which would help in developing treatment plans.
Extensive training and knowledge about autism spectrum disorder and the ADI-R is required for both conducting and scoring the interview.
[7] The ADI-R was developed by Michael Rutter, Ann LeCouteur, and Catherine Lord and published by Western Psychological Services in 2003.
This finding led Rutter, LeCouteur, and Lord to revise the ADI in 1994 so that it could be used to determine a diagnosis in individuals with a mental age of at least 18 months.This would enable clinicians to use the interview to differentiate autism from other disorders which can appear in early childhood.
[3] The main goals in revising the ADI were to make the interview more efficient, shorter, and more appropriate for younger children.
Other items were removed in order to increase the interview's ability to diagnose autism at a younger age.
[3] Questions from the original version of the ADI that were found, through research, to be unreliable or not applicable were removed when the interview was revised.