Washback The washback can be both positive and negative. Positive IEFLS test, the scores can use to study at U.S., U.K universities and universities in Australia and the other. The quality of the IEFLS test is reliable because it use to standard scoring criterion which many country give to acceptance. In contrast, there is a negative washback. IEFLS test the test-takers don’t know the real knowledge. Such as reading part, the type of test is multiple-choice. Sometimes the test-takers can guess the answer from the question and passages. Although they won’t understand the passages.