衡量试题的优劣一般是从试题的信度、效度、区分度、难度等方面来考量,其中,难度是一个重要因素,难度即测试题目的难易程度,取决于测试的目的、项目的形式和测试的性质,难度的计算一般采用某题目的通过率或平均得分率.然而,在命题过程中,如何从技术层面上对试题的难度进行调控呢?我们认为可以从试题整体呈现方式、试题情景条件数量、试题条件显现程度、数学化取向、估算要素设置等方面进 The pros and cons of the test questions are generally considered from the reliability, validity, differentiation, difficulty and other aspects of the test questions, of which difficulty is an important factor, the difficulty is the ease of test questions, depending on the purpose of the test, the project The form and the nature of the test, the difficulty of the calculation of the general adoption of the subject of a pass rate or the average rate of .However, in the process of proposition, how to control the difficulty of the test questions from the technical level? We think from the test questions overall presentation, The number of test scenario conditions, the degree of examination conditions, mathematic orientation, the evaluation of factors set into