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试题命制的“三度”(信度、效度、区分度)和“三性”(自洽性、可推广性、教育性)是试题评价的重要方面,命制试题无科学性错误是底线,原创与导向注定了试题命制是一项高风险的担当,是一项严肃的工作,但试题命制过程中,错误也常常不经意地发生。笔者以在八年级上学期期中试题命题中出现的一次错误为例,从错题呈现、错题再解、试题修正和命题启示四个方面进行反思,与同行交流。1错题呈现命题组根据双向细目表中“轴对称图形”和“勾股
Test questions of the ”three degrees“ (reliability, validity, discrimination) and ”three nature “ (self-consistency, extendability, education) is an important aspect of evaluation questions, Scientific error is the bottom line, the original and the guide destined to test the problem is a high-risk play, is a serious work, but the process of test questions, errors often occur inadvertently. Taking the mistakes made in the propositions of the test questions in the eighth grade semester as an example, the author conducts reflection on four aspects: the presentation of the wrong title, the solution of the wrong title, the revision of the test questions and the propositional revelation, and exchanges with peers. 1 error problem proposition group According to the two-way breakdown of the table ”axisymmetric graphics “ and ”Pythagorean