Efficiency analysis of different question types in a medical imaging examination

VernacularTitle:不同类型试题对医学影像学考试评价的效能分析
Author: Xin CHEN ; Shejiao DAI ; Xian ZHAO ; Zhilan BAI ; Qiang LIU ; Shemin ZHI
Publication Type:Journal Article
Keywords: Medical imaging; Type of question; Examination assessment
From: Chinese Journal of Medical Education Research 2012;(11):1160-1163
CountryChina
Language:Chinese
Abstract: Objective To explore a reasonable,accuracy and effectual proposition model for medical imaging examination.Methods Mean scores and their standard deviation and distribution as well as the difficulty,discrimination,reliability and validity of the test paper were analyzed for the 2005 grade 7-year program students by using SPSS 13.0 statistic software.Results The scores of the 67 copies of test paper displayed a normal distribution,with the mean score of 73.76 and standard deviation of 11.88.The difficulty,reliability and validity indexes of the test paper were 0.74,0.78 and 0.25 respectively.The difficulty,discrimination,reliability and validity indexes of subjective items were higher than those of objective items(0.76 vs.0.73,0.94 vs.0.90,0.71 vs.0.68,0.32 vs.0.22,respectively).Conclusions We should keep quite high proportion of subjective items and make detailed scoring standard in medical imaging examination.Furthermore,as a supplement,objectively items such as multiple choice questions can expand the scope of knowledge examined.