Educational Efficacy of Computer-Assisted Instruction with Interactive Videodisc in Radiology

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Abstract
To create a robust, functional computer-assisted instruction (CAI)-videodisc program and to demonstrate its educational efficacy. After creating a CAI-videodisc program in skeletal radiology for a two-screen Macintosh system, 36 medical students and 162 radiology residents entered a controlled study with paired pre- and posttests. Subjects also compared CAI-videodisc with other educational media. Medical students using the CAI-videodisc improved their mean pre- and posttests. Subjects also compared CAI-videodisc with other educational media. Medical students using the CAI-videodisc improved their mean pre- and posttest scores from 50.9 to 70.9 (P < .001, control group scores 50.1 and 50.6) and residents (using a different test) improved from 45.4 to 70.9 (P < .001, control group scores 49.6 and 46.1). Medical students and residents favored CAI-videodisc over teaching files, textbooks, videotapes, and slide-audiotapes. A functional CAI-videodisc program was created and demonstrated to be educationally effective.

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