确定有防御性的牙科课程的截止分数。
Determining defensible cut-off scores for dental courses.
机构信息
Operative Dentistry Department at Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
Medical Education Department at Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia.
出版信息
Eur J Dent Educ. 2020 May;24(2):186-192. doi: 10.1111/eje.12483. Epub 2019 Dec 6.
PURPOSE
Many countries and institutions have a fixed passing score of 60%. For example, this is a national policy in all Saudi universities where students at all levels must score 60% or higher to pass courses. The purpose of this study is to broaden the scope of standard-setting applications, using data from five major dental courses (Endodontics, Operative, Removable and Fixed Prosthodontics, and Pedodontics) in the 5th dental academic year for two consecutive years to determine the cut-off scores.
METHODOLOGY
Four expert raters conducted Angoff's method on final examinations of five dental courses to determine the cut-off scores for the two academic years (2015, and 2016). Cohort size of 2015 was 120 students, whilst that of 2016 was 142 students. The study was conducted at the faculty of Dentistry, at King Abdulaziz University (KAU) from December 2017 to June 2018.
RESULTS
All five dental courses yielded different cut-off scores than the fixed 60%. The cut-off scores for 2015 and 2016 examinations were 59.15%, 63.75% for Removable Prosthodontics, 51.86%, 53.75% for Fixed Prosthodontics, 47.42%, 50.5% for Pedodontics, 74.22%, 74.31% for Endodontics and 58%, 55.55% for Operative Dentistry.
CONCLUSION
Angoff method yielded different cut-off scores than the fixed 60% passing score currently used by the dental school, yielding a difference in pass-fail rates by as much as a staggering 41%. This finding provides support to use evidence-based standard-setting methods to determine the cut-off score for the courses in Dentistry programme.
目的
许多国家和机构都将 60%作为固定的及格分数。例如，这是沙特所有大学的一项国家政策，各级学生必须获得 60%或更高的分数才能通过课程。本研究的目的是扩大标准制定应用的范围，使用连续两年的五个主要牙科课程（牙髓学、口腔外科学、可摘义齿修复学和固定义齿修复学以及儿童牙科学）的期末考试数据来确定截止分数。
方法
四位专家评估员对五个牙科课程的期末考试进行了 Angoff 方法，以确定两个学年（2015 年和 2016 年）的截止分数。2015 年的队列规模为 120 名学生，而 2016 年的队列规模为 142 名学生。该研究于 2017 年 12 月至 2018 年 6 月在阿卜杜勒阿齐兹国王大学（KAU）牙科学院进行。
结果
所有五个牙科课程的截止分数都与固定的 60%不同。2015 年和 2016 年考试的截止分数分别为可摘义齿修复学 59.15%、53.75%，固定义齿修复学 51.86%、53.75%，儿童牙科学 47.42%、50.5%，牙髓学 74.22%、74.31%，口腔外科学 58%、55.55%。
结论
Angoff 方法得出的截止分数与目前牙科学校使用的固定 60%及格分数不同，通过率差异高达惊人的 41%。这一发现为使用基于证据的标准制定方法来确定牙科课程的截止分数提供了支持。
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