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We evaluate the impact of a videotape specially produced to supplement written information about preventive HIV vaccine trials. One hundred eighty-six injection drug users were randomly assigned to an education session in which either: (a) a pamphlet was reviewed before a brief discussion period or (b) the videotape was watched prior to reviewing the(More)
In an attempt to enhance the reliability of Addiction Severity Index (ASI) interviewer severity ratings (ISRs), we developed a set of eight ASI vignettes, fictionalized narrative case summaries that reproduced the quantitative ASI information in case report format. Each vignette has an ISR answer key, a consensus ISR of two expert ASI trainers for each(More)
A short quiz of Addiction Severity Index (ASI) coding conventions was developed to identify coding inconsistencies within a large group of trained interviewers, as one step in an overall program of quality assurance monitoring. Problem items, in which less than 75% of the quiz respondents answered correctly, existed in almost every ASI section. The ASI quiz(More)
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