教育评价计量的h效率度和h损失度

H Efficiency Index and H Loss Index as New Metrics for Educational Evaluation

为了在教育评价中更好地体现教育公平等基本原则,提出了两个用于教育评价的新型计量指数,h效率度和h损失度。以课程考试成绩的整体评价为例,比较了h效率度、h损失度、平均分和中位数的评价结果。结果表明,h效率度和h损失度这两个新指标互为补充,不仅考虑了分数的高低,还考虑了分数水平覆盖对象的多少,为整体的评价提供了更加丰富的信息量。对一所高中的11个平行班级的数学教学质量研究也表明,与平均数和中位数相比,年度考试成绩的h效率度与班级教学质量的综合评价结果有更好的相关性。h效率度和h损失度不仅简洁实用,而且在统计学上是稳健的,较好地满足了教育公平对于教育评价的计量要求。

n order to better reflect basic principles such as educational equity in educational evaluation,two newindexesfor educational evaluation,h efficiency index(HEI)and h loss index(HLI),were proposed.Taking the overall evaluation of course examination results as an example,the evaluation results of HEI,HLI,average score and median were compared.The results show that HEI and HLI are complementary to each other.HEI and HLI consider not only the level of score,but also the number of objects covered by the score level,which provides a richer amount of information for the overall evaluation.HEI and HLI are concise and practical,statistically robust,which would meet the requirements of educational evaluation for educational equity.