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)

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)