Standardized Test - Advantages

Advantages

One of the main advantages of standardized testing is that the results can be empirically documented; therefore, the test scores can be shown to have a relative degree of validity and reliability, as well as results which are generalizable and replicable. This is often contrasted with grades on a school transcript, which are assigned by individual teachers. It may be difficult to account for differences in educational culture across schools, difficulty of a given teacher's curriculum, differences in teaching style, and techniques and biases that affect grading. This makes standardized tests useful for admissions purposes in higher education, where a school is trying to compare students from across the nation or across the world.

Another advantage is aggregation. A well designed standardized test provides an assessment of an individual's mastery of a domain of knowledge or skill which at some level of aggregation will provide useful information. That is, while individual assessments may not be accurate enough for practical purposes, the mean scores of classes, schools, branches of a company, or other groups may well provide useful information because of the reduction of error accomplished by increasing the sample size.

Standardized tests, which by definition give all test-takers the same test under the same (or reasonably equal) conditions, are also perceived as being more fair than assessments that use different questions or different conditions for students according to their race, socioeconomic status, or other considerations.