Development And Application Of A Tool For Evaluating The Difficulty Of Chemistry Questions In Senior High School Entrance Examination

For a long time,the phenomenon of heavy academic burden of primary and secondary schools in China has been the concern of everyone.The difficulty of all kinds of examination questions is also considered to be one of the important reasons for the heavy academic burden of primary and secondary school students.As one of the core of the whole education difficulty,examination difficulty is the expected result of education,which often marks the level of a country's education.We can't think that reducing the burden is to blindly reduce the requirements of the examination and narrow the scope of the examination.Instead,we should eliminate those who can't test the students' ability and other unreasonable factors,and effectively reduce the burden on the basis of not reducing the level of education and teaching Lighten the students' academic burden.In order to ensure the quality of junior high school chemistry education and maintain a certain level of education and teaching,form a good teaching orientation and remove the unnecessary burden brought and formed by the examination,it is necessary to summarize the past successful experience of our country's examination,learn from the latest foreign practices,seek scientific,reasonable and fair critical basis and measurement standards,and evaluate the difficulty of senior high school chemistry examination from an international perspective The evaluation can study the difficulty level of chemistry senior high school entrance examination from the perspective of theory and science from the needs of students' development and international trend,and effectively improve the effectiveness and pertinence of the difficulty evaluation of chemistry senior high school entrance examination and students' academic burden reduction in compulsory education.However,there is no scientific and reasonable evaluation standard for the difficulty of the current test paper,often only from the test scores or their own experience to judge the difficulty of a test paper,or only focus on a limited one or several factors that affect the difficulty of the test paper.Facts have proved that the lack of a set of reasonable,effective and scientific indicators has affected the scientificity of the difficulty evaluation and the improvement of the quality of the examination questions.Based on the above practical problems,this study focuses on the chemistry questions of senior high school entrance examination,and studies the development and application of the difficulty evaluation tool of chemistry questions of senior high school entrance examination.The whole paper is divided into six chapters.In Chapter 1,on the basis of defining several core concepts,the research on the difficulty of chemistry test in senior high school entrance examination is summarized,and the existing evaluation methods of the difficulty of chemistry test are analyzed.On this basis,the research objectives,research methods and research paths are determined,and the relationship between various factors affecting the difficulty of chemistry test is clarified,so as to build a systematic and comprehensive evaluation system of the difficulty of chemistry test in senior high school entrance examination The evaluation tools are applied to the analysis and comparison of the difficulty of chemistry questions in senior high school entrance examination in China.In Chapter 2,based on the analysis of the composition and characteristics of chemistry questions in senior high school entrance examination,combined with relevant literature,interviews,questionnaires and other research,the factors that affect the difficulty of chemistry questions in senior high school entrance examination are analyzed,so as to determine that the content,organization,chemical process,characterization and situation of chemistry questions in senior high school entrance examination jointly affect chemistry questions in senior high school entrance examination The difficulty of the test.In Chapter 3,through the definition and analysis of the connotation of the factors influencing the difficulty of chemistry test in senior high school entrance examination,the indexes at all levels of the difficulty evaluation of chemistry test in senior high school entrance examination are preliminarily constructed.The validity,reliability and operability of the evaluation dimension index of chemistry test in senior high school entrance examination were tested in the aspects of development,reliability test of evaluation standard and so on.In Chapter 4,expert consultation method and analytic hierarchy process are used to allocate the weight of each index of the difficulty evaluation of senior high school entrance examination,and the results of the joint evaluation of teachers and students are used as the calibration standard to preliminarily test the validity of the user of the whole difficulty evaluation index system of senior high school entrance examination.Chapter 5 applies the established index system to evaluate the difficulty of the senior high school entrance examination papers in 12 regions,and applies the index system to reveal the relationship between the absolute difficulty and the measured difficulty of the senior high school entrance examination papers.The whole evaluation results mainly reveal the differences and characteristics of the difficulty of senior high school entrance examination questions in different regions of China from the micro and overall levels,as well as the need to improve the difficulty control of the questions.It also proves that the constructed evaluation index system of the difficulty of senior high school entrance examination chemistry questions is scientific and effective in the diagnosis of the difficulty of senior high school entrance examination questions.In Chapter 6,the research is systematically summarized from the aspects of the determination of the influencing factors of the difficulty of chemistry questions in senior high school entrance examination,the formulation of evaluation standards,the development of evaluation tools,and the application of evaluation tools.It also points out the shortcomings of this study from the aspects of user validity test,test difficulty synthesis method,test evaluation object selection and so on.Finally,the paper puts forward the research prospect from the aspects of the adaptability of students' individual differences,the comparative study of test difficulty from the international perspective,and the integration of test difficulty evaluation and information technology.Based on the extraction of the factors affecting the difficulty of chemistry questions in senior high school entrance examination,the development and test of the evaluation tools for the difficulty of chemistry questions in senior high school entrance examination,and the application of the evaluation tools,a relatively complete and operable methodology system has been formed,and the characteristics,commonalities,differences,and remaining problems of the difficulty of chemistry questions in senior high school entrance examination in China have also been explored.Therefore,this study has both theoretical and practical significance,but also has methodological significance.There are still many aspects to study on the difficulty of chemistry test in senior high school entrance examination.This study is only in the initial stage,and the difficulty evaluation tool of the test still needs to be further explored.