The 12th annual William H. Angoff Memorial Lecture was presented by Dr. Michael T. Kane, ETS's (Educational Testing Service) Samuel J. Messick Chair in Test Validity and the former Director of Research at the National Conference of Bar Examiners. Dr. Kane argues that it is important for policymakers to recognize the impact of errors of measurement…

Few arguments about education are as effective at galvanizing public attention and motivating political action as those that compare the performance of students with their counterparts in other countries and that connect academic achievement to economic performance. Because data from international large-scale assessments (ILSA) have a powerful…

Under No Child Left Behind legislation, schools are held accountable for making "adequate yearly progress." Presumably, a school progresses when its impact on students improves. Yet questions about impact are causal questions that are rarely framed explicitly in discussions of accountability. One causal question about school impact is of…