title: Iliad training enhances medical students' diagnostic skills.
abstract: Iliad is a computerized, expert system for internal medical diagnosis. The system is designed to teach diagnostic skills by means of simulated patient case presentations. We report the results of a controlled trial in which junior students were randomly assigned to received Iliad training on one of two different simulated case mixes. Each group was subsequently tested in both their "trained" and "untrained" case domain. The testing consisted of computerized, simulated patient cases for which no training feedback was provided. Outcome variables were designed to measure the students' performance on these test cases. The results indicate that students made fewer diagnostic errors and more conclusively confirmed their diagnostic hypotheses when they were tested in their trained domain. We conclude that expert systems such as Iliad can effectively teach diagnostic skills by supplementing trainees' actual case experience with computerized simulations.
authors.affiliation: Department of Medical Informatics, University of Utah, Salt Lake City 84132.
authors.forename: M J
authors.initials: MJ
authors.lastname: Lincoln
authors.forename: C W
authors.initials: CW
authors.lastname: Turner
authors.forename: P J
authors.initials: PJ
authors.lastname: Haug
authors.forename: H R
authors.initials: HR
authors.lastname: Warner
authors.forename: J W
authors.initials: JW
authors.lastname: Williamson
authors.forename: O
authors.initials: O
authors.lastname: Bouhaddou
authors.forename: S G
authors.initials: SG
authors.lastname: Jessen
authors.forename: D
authors.initials: D
authors.lastname: Sorenson
authors.forename: R C
authors.initials: RC
authors.lastname: Cundick
authors.forename: M
authors.initials: M
authors.lastname: Grant
mesh_terms: D002982:Clinical Clerkship; D003198:Computer Simulation; D003628:Database Management Systems; D003658:Decision Making, Computer-Assisted; D003936:Diagnosis, Computer-Assisted / Q000295:instrumentation*; D003951:Diagnostic Errors; D004501:Education, Medical; D005103:Expert Systems; D006801:Humans; D008838:Microcomputers; D012984:Software