Differentiating ability of the test materials for assessing the education quality
The problem of the tests preparing to assess the students' knowledge is considered in the article. The test material must be informative, reliable, showing the differentiating ability. The differentiating ability of the tests makes it possible to differentiate a strong test from a weak one. The authors consider in this study the examples for the methods of determining the differentiating ability of the test, concentrating on the different types of questions. The article should help a teacher to assess the quality of students` education in the studied subjects.