As clinicians gained more experience with the use of ASI-5 in real-life practice, it was pointed out that some questions in the questionnaire might be overlapping with information collected during admission. In a bid to avoid duplication and wasting medical resources, a condensed form of ASI, ASI-Lite was introduced in 1997.McLellan, A. T., Cacciola, J. S., & Zanis, D. (1997). The addiction severity index-lite. Center for the Studies on Addiction, University of Pennsylvania/Philadelphia VA Medical Center. Modifications were done including the removal of interviewer severity rating, removal of questions pertaining to family/genetic heritability and emotional problems and the inclusions of research-oriented questions. It consists of 111 items and requires 30–40 minutes to complete. Since most key elements are retained, ASI-Lite and ASI-5 showed similar reliability and validity.
