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发表于 2014-12-5 11:46:00
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终于在ARDMS网站上找到了他们的记分方法,如下:
Scoring Methods
ARDMS uses a criterion-referenced methodology for scoring all examinations. With this type of scoring methodology, there is no curve and candidates do not compete against each other. In constructing criterion-referenced examinations for ARDMS, the most important score is the cut-off score, which represents basic competency. A great deal of time is spent ensuring that the cut-off scores are derived fairly.
An analysis of the examination questions is produced using a variation of the Bookmark scoring method and other classical testing approaches. Approximately 15 percent of the test questions may appear as non-scored trial items. These items are used for future exam development and candidates will not know which are the trial questions.
ARDMS test results are reported as scaled scores, ranging from 300 to 700. A scaled score of 555 (cut-off score) is required to pass all ARDMS examinations. The scaled score is not a percentage point of correct answers, nor is it built on a "curve" where a certain percentage of scores would pass and a certain percentage would fail.
大概的意思是:这是一个标准化的考试,每项考试的所有试题中只有85%是用来记分的(但应试者当然不知道哪些题是记分的,哪些是不计分),另外15%是用来测试以后出的考题的。
考试结果进行量表化的评分(300-700分),如果能得到555分以上就算通过。但这个分数既不代表答对的题目比例,也不代表通过的人数比例,那到底代表什么呢?这个有点晕。
反正这个考试就只有一定比例的通过率,和目前国内的一些考试一样。只是不知道以我们目前国内超声医生的水平,在ARDMS总体的应试者中处于什么位置,通过率如何?欢迎各位大侠来回答补充!
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