Videotapes in psychiatry: their use in teaching observation techniques.

In order to assess the effectiveness of videotapes in teaching mental state examination, two groups of medical students, one who had received videotape teaching and one not exposed to videotapes, are compared in their ability to observe accurately the mental state during a live interview. Accuracy of observation was assessed by obtaining a measure of the students' ability to shift from an incorrect opinion about a patient to a more accurate assessment following the live interview. Students who had received videotape teaching were able to make more accurate judgements than those who had not. This ability was not related to certain personality attitudes measured, nor to an ability to detect subjective elements in the interview, nor is it reflected in their examination results. The only significant variable found to influence this ability was whether or not the student had received videotape teaching.