Validity of Force Concept Inventory evaluated by students’ explanations and confirmation using modified item response curve

Validity of Force Concept Inventory evaluated by students’ explanations and confirmation using modified item response curve
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通过学生的解释和使用修改后的项目响应曲线的确认来评估力概念清单的有效性

DOI:
10.1103/physrevphyseducres.17.020120
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发表时间:
2021
期刊:
Phys. Rev. Phys. Educ. Res.
影响因子:
--
通讯作者:
and E.Kaga
and E.Kaga
中科院分区:
--
文献类型:
--
作者:
Y.Shoji;S.Munejiri;and E.Kaga

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在这项研究中,我们评估了部队概念清单(FCI)中问题29(Q.29)的有效性,该问题需要了解大气压力。至少在一些日语物理课上,29题的正确率在前测和后测之间会降低。为了检验学生反应的恶化,我们分析了358名受访者对问题中所描述的力量的429种解释。许多没有意识到大气力的学习者选择了正确的答案。另一方面,许多错误的受访者了解了气压,但并不理解它。因此,教学后学习者的正确答复率往往更低。这使得Q.29对日本学生的能力不那么敏感。Q.29的这一特征在视觉上得到了修改后的项目反应曲线的确认,该曲线代表了对一个项目的反应与其他项目的总分之间的相关性。
In this study, we evaluate the validity of question 29 (Q.29) in the Force Concept Inventory (FCI), which requires an understanding of atmospheric pressure. At least in some Japanese physics classes, the rate of the correct answer to Q.29 is reduced between the pretest and post-test. To examine this deterioration of a student’s response, we analyzed 429 explanations written by 358 respondents about the force described in the question. Many learners, who were not aware of atmospheric force, chose the correct answer. On the other hand, many of the wrong respondents had learned about air pressure but did not understand it. As a result, postinstruction learners tended to have a worse rate of correct response. This made Q.29 less sensitive to a Japanese student’s ability. This characteristic feature of Q.29 is visually confirmed by a modified item response curve, which represents correlation between the response to one item and the total score of the other items.
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