ERIC Number: ED080576
Record Type: RIE
Publication Date: N/A
Reference Count: 0
Accuracy of Measurement of Clinical Performance in Dentistry.
Houpt, Milton I.; Kress, Gerard
This study was concerned with reliability and accuracy of measurement of clinical performance in operative dentistry. The influences on reliability and accuracy of the nature of the rating scale (that is, the number and the specificity of scale points), the extent of clinical experience of the rater, and the training of raters were investigated. Subjects included 30 instructors, 36 junior dental students, and 16 dental assistants from the University of Pittsburgh. In addition, five expert raters were used. The subject groups (instructors, students, assistants) were subdivided into three groups so that three different rating scales could be used. The scales were: a 2-point scale with two specified points, a 5-point scale with end points specified, and a 5-point scale with all points defined. At each of three sessions, subjects evaluated eight criteria of operative dentistry performance in five specimens, each containing one extracted mandibular second bicuspid. All scores were analyzed for between-judge and within-judge reliability, and for accuracy, that is, agreement with an expert score. Individual criterion scores as well as total test scores were used for the analysis. At one dental school instructors were able to reliably evaluate overall performance in operative dentistry. However, instructors were not able to assess specific criteria of performance accurately. Junior dental students performed similar to instructors, whereas dental assistants were able to be trained to rate overall performance fairly accurately. Practice with use of scale with immediate feedback did not result in high reliability and accuracy. (Author/DB)
Publication Type: N/A
Education Level: N/A
Sponsor: National Institutes of Health (DHEW), Bethesda, MD. Div. of Dental Health.
Authoring Institution: N/A