Maintaining comparability of test scores is a major challenge faced by testing programs that have almost continuous administrations. Among the potential problems are scale drift and rapid accumulation of errors. Many standard quality control techniques for testing programs, which can effectively detect and address scale drift for small numbers of…

Educational practitioners rely predominantly on measures of outcome, rather than of inputs or process, in making judgements as to quality. Outcome measures are available from two main sources: (1) the relatively new international assessment systems; and (2) the traditional national examinations systems. The two types of system differ in their…

While much of the work in language testing is concerned with constructing quality tests in order to measure language knowledge in reliable and valid ways, there has been a significant movement in language testing research that examines tests in the context of their use in education and society. This line of research exits from the notion that…