Burns E Robert, Garrett Judith E, Childs Gwen V
University of Arkansas for Medical Sciences, Little Rock 72223, USA.
Med Teach. 2007 Nov;29(9):990-2. doi: 10.1080/01421590701477365.
Student self-scheduling of computer-based examinations during a defined window of opportunity is a protocol used by some medical school courses and licensing bodies. Students scheduling late have more time to prepare, which may provide them with an unfair advantage.
ANOVA was used to compare the average scores of three different cohorts of test-takers (early, middle and late) on 13 Microscopic Anatomy exams taken over a 3-year period (2003-2005) at the University of Arkansas for Medical Sciences.
On 11 of the 13 exams, the average score of students who took the exam last was lower than that of students who took the exam first. These differences were significant for eight (73%) exams. There were two exams on which the average score of students who took the exam last was higher than that of students who took the exam first, but these differences were not significant.
Scheduling exams late in the window of opportunity does not appear to provide a performance advantage and may even be detrimental since these students are responsible for new content information in the course and in other concurrently running courses while they are preparing for a 'late' exam.
在规定的机会窗口内由学生自行安排基于计算机的考试，这是一些医学院课程和执照颁发机构采用的一种方案。安排考试较晚的学生有更多时间准备，这可能会给他们带来不公平的优势。
采用方差分析来比较在阿肯色大学医学科学分校2003年至2005年的3年期间进行的13次微观解剖学考试中，三组不同考试时间的考生（早、中、晚）的平均成绩。
在13次考试中的11次考试中，最后参加考试的学生的平均成绩低于最先参加考试的学生。其中8次（73%）考试的这些差异具有统计学意义。有两次考试，最后参加考试的学生的平均成绩高于最先参加考试的学生，但这些差异不具有统计学意义。
在机会窗口后期安排考试似乎并不能带来成绩优势，甚至可能有害，因为这些学生在准备“晚些”的考试时，还需要学习本课程以及其他同时开设课程中的新内容信息。
