Contends that the high quality of the probability sampling used by the International Association for the Evaluation of Educational Achievement (IEA) is due, in large part, to procedures developed by IEA's first statistical consultant, Gilbert Peaker. Concludes that the Peaker process is a first-class sample design. (CFR)

This report examines federal, state, and local databases containing information on migrant workers and their children, identifies their common characteristics, and assesses their potential utility to inform educational policy analysis. General criteria used to evaluate each database's strengths and weaknesses include standardization, reliability,…

Asserts that educational policymakers must measure student achievement and school system performance accurately to help provide skills demanded by society. Contends that many international surveys either fail to provide adequate and precise answers to the intended research questions or provide inaccurate and faulty results. (CFR)

This book includes revised presentations from an October 2001 meeting of the National Institute for Disability and Rehabilitation Research and the Cornell Rehabilitation Research and Training Center that considered the validity of current data for measuring trends in the employment rate of people with disabilities and investigated the causes and…