a text with content validity is able to identify students\u0027 mastery of certain language fields.Key: If a test actually samples the class of situations, that is, the universe of subject matter about which conclusions are to be drawn, it is said to have content validity. A test with content validity can reflect an individual’s mastery of a certain learning field through the test items it samples. Construct validity is another category that teachers must be aware of when they conduct language tests. The test with structural validity can be tested by the question of “whether the test explains a defined theoretical conception”.