They create equal opportunities for students to show the knowledge in the area and usually they cover the entire content of the instruction. From this perspective they are fair to the students. Good tests also help students learn the course by requiring them to study hard, emphasizing objectives, and showing them where they need to improve. In other words, we can use them to diagnose our own efforts as well as those of our students. They provide critical information to the students, teachers and administration that should make the learning process more efficient.
Achievement tests provide information about the effectiveness of instructional programs.
Tests can be also used for research purposes to compare the methods and techniques of instruction, textbooks, etc. Standardized tests would probably illuminate a lot of problems for the candidates who are to going to receive higher education. The introduction of the testing practice in the former Soviet Union republics would be beneficial for the system of education. It is of course the matter of time, specialists and educational policy. International Programs University of Iowa 1998.