ABSTRACT
Psychometricians routinely use quantitative tools in test development and after test administration as part of the procedures used to evaluate the quality of the information yielded by those instruments. To some degree, nearly all those procedures play a part in ensuring that tests function in ways that promote fundamental fairness for test-takers and support the ethical use of test information by those who make decisions based on test results. In this chapter, we survey some of the quantitative methods used by testing specialists to accomplish those aims. The sections of this chapter are organized along the lines of three major phases of testing: test development, test administration, and test score reporting and use.
