title: Educational efficacy of computer-assisted instruction with interactive videodisc in radiology.
abstract: OBJECTIVE
  To create a robust, functional computer-assisted instruction (CAI)-videodisc program and to demonstrate its educational efficacy.
  
  
  METHODS
  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.
  
  
  RESULTS
  Medical students using the CAI-videodisc improved their mean pre- and posttests. Subjects also compared CAI-videodisc with other educational media.
  
  
  RESULTS
  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.
  
  
  CONCLUSIONS
  A functional CAI-videodisc program was created and demonstrated to be educationally effective.
authors.affiliation: Department of Radiology, Massachusetts General Hospital, Boston 02114.
authors.forename: F S
authors.initials: FS
authors.lastname: Chew
authors.forename: J G
authors.initials: JG
authors.lastname: Smirniotopoulos
mesh_terms: D001842:Bone and Bones / Q000000981:diagnostic imaging; D003194:Computer-Assisted Instruction; D004501:Education, Medical; D007396:Internship and Residency; D011859:Radiography; D011871:Radiology / Q000193:education*; D014742:Videodisc Recording