Although International Association for the Evaluation of Educational Achievement-pioneered international large-scale assessment (ILSA) of education is now a well-established science, non-practitioners and many users often substantially misunderstand how large-scale assessments are conducted, what questions and challenges they are designed to…

Drawing on the experience of Oregon's new-teacher evaluation system, describes teacher work-sample methodology and evidence for its reliability and validity in evaluating the performance of prospective teachers. This is a methodology that responds to the challenge issued by the National Commission on Teaching and the America's Future challenge.…

Teachers must learn to distinguish among performance assessments of different quality and appropriateness. Design criteria (cognitive complexity, linguistic appropriateness, content quality and coverage, and meaningfulness) are judged by examining assessment tasks and scoring rubrics. Effects criteria (transfer, generalizability, instructional…

The most fundamental technical quality issue raised by proposals for a national examination system is that of validity. Types of evidence needed to judge the validity of test use and the interpretation of results are discussed, and examination content, fairness, impact, generalizability, and comparability are explored. (SLD)

Two separate sets of minimum standards designed to guide the evaluation of bilingual projects are proposed. The first set relates to the process in which the evaluation activities are conducted. They include: validity of assessment procedures, validity and reliability of evaluation instruments, representativeness of findings, use of procedures for…