ERIC Number: ED246745
Record Type: RIE
Publication Date: 1984
Reference Count: 0
The Effect of Different Levels of Expertise on Interpretation of Dental X-Rays.
Dijkstra, S.; And Others
The interpretation of dental X-rays by novices (students) and experts (dentists practicing more than 3 years) was compared. Eight fifth-year novices and eight experts were presented three types of problem X-ray (easy, difficult, and control). Experts were faster in solving the problems and their diagnoses were more accurate. Analysis of eye movement patterns during the first second indicated differences in problem solving approaches. Students paid more attention to conspicuous areas, while dentists attended more to cognitive conspicuous areas (i.e., areas attracting attention because of possible significance of diagnosis). Students' attention for visually conspicuous areas resulted in a lower information gain during the first second. Processing time also showed an expertise effect, which was most evident in control problems. Dentists first inspected the whole X-ray, and then tried to formulate solutions, whereas the students tried to solve the problem immediately. Differences between students and dentists are discussed in terms of eye movement pattern and pupil size. Ten sample X-rays are included. (SW)
Publication Type: Reports - Research; Speeches/Meeting Papers
Education Level: N/A
Authoring Institution: N/A
Identifiers: X Rays
Note: Paper presented at the Annual Meeting of the American Educational Research Association (New Orleans, LA, Apr 23-27, 1984). Photographs may not reproduce well.