After tests are administered, they are scored and the scores are given back to the students. If the real purpose of the test is to improve student learning, simply returning the scores is not sufficient. The first step in evaluating test results is to be sure that the test has tested the intended concepts and content. Calculating the mean and the standard deviation shows whether the test has been too easy or too difficult. After checking all the questions for appropriate difficulty, the teacher should decide whether to discard any items and rescore the test. Tests should then be returned to students with the correct answers and some comments that will help improve student learning. Teachers should also use the test results to improve instruction and to improve the test itself, building up a test bank of items that have been used with previous students. Checking the results carefully gives good feedback to students, helps evaluate instructional quality, and helps in the preparation of better future tests. (SLD)