According to the correlation between language teaching and testing, language tests involve five basic types: proficiency test, aptitude test, achievement test, diagnostic test, placement test.
In most schools, the daily achievement test (DAT) such as classroom test, unit test, end-of-term test gets less attention than the high stake test.
Most physical tests are achievement test based on criterion referenced in engineering institutions of higher education.
The achievement test designed according to the curriculum criterion is to measure to what degree students master the concepts, the principle and the knowledge in certain fields.
However, even though researches on achievement test have achieved great success in the Chinese education field, but there is few research touching upon predictability tests.
