Dynamic optimization model about difficulty coefficient and discrimination of exam questions in questions pool;

The Research on National Civil Servant Recruitment Interview Discrimination of Jiangsu Province;

It includes validity,reliability,difficulty and discrimination of the text paper and the items.

Research on calculating methods of difficulty and differentiation in education survey;

Analysis and Evaluatoin of Sports Statistics Testing Paper's Difficulty and Differentiation

Study on reliability,difficulty and differentiation of examination of computer-based case simulations

Having analyzed the examination scores by using statistical method,the reliability,difficulty,coverage and distinction of the examination are defined.

In this paper, we analyse the distinction concept and its quantitization method in testing quality evalution index system.

statistical analysis of test results of 158 students in college physical experiment is done in this paper,and a scale analysis is done for the reliability,distinction and difficulty of each question as well as the whole paper.

To evaluate our school′s test quality, collect some relevant information on improvement of teaching quality and establish test items database, a quantitative analysis was performed on the preventive medicine test papers of 40 nursing students to explore the degree of difficulty, degree of distinction, degree of reliability and degree of validity.

This paper introduces how to use belief degree arid effect degree in statistics to estimate belief degree, effect degree and distinguish degree in test paper.

Low convergent validity and low discriminant validity were consistently found in most studies.