This document discusses standardized testing and its purpose. It begins by providing a brief history of standardized tests originating in China. It then outlines the advantages and disadvantages of standardized tests, such as providing metrics for improvement but also being prone to discrimination. The main purpose of standardized tests is to enable comparisons of competencies between individuals with different backgrounds. The document also examines different test formats, items, and reporting styles used in standardized tests and provides examples of language-specific tests and their uses.