The Application Study Of Adaptive Testing In Personalized Exercise

"The Medium and Long Term Reform and Development of Education Plan of China(2010-2020)"pointed out that "To reduce the burden of primary and secondary school students,excessive schoolwork burden damage to the physical and mental health of young people.".However,"questions tactics" is still relatively common in the teaching process for performance and enrollment rate.There have been some practical problems such as large quantity,repeating and "one size fits all" in the homework of middle and primary schools.And targeted exercises based on the level of individual students is an effective strategy to solve these problems.It can be said that,in order to meet the needs of reducing the burden of students,under the guidance of individualized learning,in the development of educational informationization,personalized exercise emerge consequentially.Personalized exercise pursue the goal of doing the least questions and getting the most effective improvement.How to recommend exercises to students to achieve this goal is the core and key issues of personalized exercise.In 1970,Lord proposed that when a question is neither too difficult nor too easy for a student,this question is a good question for the student.This is the core idea of adaptive testing,and the author holds that it could also be applied in personalized exercise.This paper analyzes the feasibility of applying adaptive testing to personalized exercise,compares CAT and MST according to the needs of personalized exercise,and determines the combination of item selection strategy of CAT and testlets form of MST as the item selection mechanism of personalized exercise.And increasing the feedback,which has strong influence on the learning effect,in order to help students better digest the items in personalized exercise.Consequently,the personalized exercise of applying adaptive testing has been proposed.This paper expatiates on the constituent elements,operating steps and characteristics of the personalized exercise of applying adaptive testing,and then carrys out the quasi-experiment research.This research adopts non equivalent control group pretest posttest design,selects two classes of the second grade junior middle school students as the subjects,takes the chapter of quadratic radial as an example.The experimental results show that the personalized exercise of applying adaptive testing can effectively improve the students’ ability level and performance.