【摘要】 使用SPSS对第34期国家港监轮机英语考试的信度进行了探讨。结果表明34期考试信度偏低(整卷信度为0.77)。试题难易度适中(P=0.74),但区分度很低。有些试题得分与总分甚至呈负相关,建议该部分试题从题库内删除或重新设计。更多还原

【Abstract】 Reliability of No. 34 National Marine Engineering English Test for Seafarers was studied using the scores of 36 students. The results indicate that Cronbachα(0. 77 ) thereof is below the required value of 0. 8 for such test. The facility value is suitable, but the item discrimination index is very low. It is suggested that those items whose scores are correlated with the total score inversely be removed from the Item Bank or re - designed.更多还原