As psychology, education measure theory and with the combination of computer technology of continuous research and development, based on Computer Adaptive Test (CAT) become a new type of test form. Based on the analysis and state the topic of CAT theory and Maximum Information Selection Strategy (MISS), the method of maximum information selection strategy in the key issues in an adaptive testing system solutions is discussed. The effectiveness of the solution method which this topic given is proved by experiment.

In a society with competition for talents and knowledge, Looking at Chinese current education, students have been in a state of test-oriented education for a long time. There is no doubt that the assessment of students is mostly based on final test scores, namely gaokao. Such assessment methods seriously hamper the innovative spirit and ability of students. In order to solve this contradiction, quality education must be implemented in an all-round way, and student assessment plays a role in guiding the development of value orientation suitable for social development in this process. As a long-standing assessment method in China, the college entrance examination naturally has the advantages of high reliability, high validity, and high efficiency. However, the shortcoming of being scored-based is obvious as well. This paper focuses on the literature-based method by collecting and analyzing various existing literature on the subject and selecting information from it for the purpose of the study. In this study, the beneficial impact of formative assessment on educational development is expounded through the characteristic internal assessment method in the International Baccalaureate Diploma Program (IBDP). Combined with the actual situation in China, it analyzes the feasible methods of formative assessment in China such as diverse formative assessment in different subjects and the problems it may face, such as the large population base and the shortage of education funds.