期刊
JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY
卷 65, 期 6, 页码 1155-1161出版社
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.joms.2006.11.021
关键词
-
Purpose: This study was conducted to objectively evaluate the effect of feedback and instructional material on the acquisition of surgical psychomotor skills for a model system based on mandibular fracture repair. Materials and Methods: This study was a prospective cohort study comprised of students in the preclinical years of dental or medical education. The students were divided into 4 groups and exposed to different levels of feedback/written instructions (including none) in the testing environment. Each subject was given a pair of aluminum bars, representing a fractured human mandible, and a standardized set of tools, including a fixed length of stainless steel wire to fix the bars together. The strength of fixation was measured, using a calibrated testing apparatus, as the amount of load that the fixed sample could tolerate to the point of failure. All subjects completed 5 successive trials under the same conditions. Descriptive statistics were recorded to provide comparisons between groups. Bivariate statistics were computed to compare the different study groups; multiple-comparison testing was used to evaluate differences among the groups. A P value <= 05 was considered statistically significant. Results: The sample was comprised of 61 students, divided into 4 groups. The students who received neither instructions nor feedback had the lowest average performance scores. Those who received both feedback and instructions had the highest average performance scores. The students who received instructions only fared better than those who received feedback only, but only immediately after receiving instructions. Differences between the groups tended to dissipate after a few trials. Conclusions: Written instructions and performance feedback can enhance the acquisition of psychomotor skifls related to the performance of a complex task. (c) 2007 American Association of Oral and Maxillofacial Surgeons.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据