Standardized tests are a common part of the education system. However, there are several different types of standardized tests. One type of test is the achievement test, which measures what students have learned in a particular subject area. Another type of standardized test is the aptitude test, which measures a student's potential for learning. There are also high-stakes tests, which have significant consequences for students, such as college admissions or graduation requirements. Some other synonyms for standardized tests include evaluation, assessment, and measurement. Regardless of the type of test, standardized testing plays an important role in measuring student progress and informing educational decisions.