... principles of Language Testing, major characteristics of a good test, especially test validity and reliability, achievement test and statistic methods used in interpreting test results. From critical ... backgrounds on evaluating a test, which includes language testing, criteria of good tests and theoretical ideas on test reliability and validity as well as achievement tests.Chapter 3- The study ... discrimination of the tests. The results of English test are not successfully and completely employed. In addition, during the time I have worked as a teacher of English at...