Validity is the hallmark of quality for educational and psychological measurement. But what does quality mean in this context? And to what, exactly, does the concept of validity apply? These apparently innocuous questions parachute the unwary inquirer into a minefield of tricky ideas. This book guides you through this minefield, investigating how the concept of validity has evolved from the nineteenth century to the present day. Communicating complicated concepts straightforwardly, the authors answer questions like: What does ′validity′ mean? What does it mean to ′validate′? How many different kinds of validity are there? When does validation begin and end? Is reliability a part of validity, or distinct from it? This book will be of interest to anyone with a professional or academic interest in evaluating the quality of educational or psychological assessments, measurements and diagnoses.

"Prepared by the Joint Committee on Standards for Educatioanl and Psychological Testing of the American Educational Research Association, American Psychological Association and National Council on Measurement in Education"--T.p. verso.

Offering an in-depth study of validity, which forms an important part of education assessment, this book addresses complex concepts in a straightforward manner, while guiding the reader through the evolution of validity from the 19th century to the present day.

Going into its eighth edition, this book is a classic in the field of educational measurement. It was written from the point of view of the classroom teacher to answer the question, "What does a teacher need to know about the development and evaluation of educational measures and assessments?" This book fosters an understanding of how assessment and instruction are interrelated. It also cultivates learning the techniques and skills needed to develop tests and other evaluation procedures (e.g. portfolios), as well as teaches students to understand how to evaluate the validity and reliability of tests. Unlike many books in educational measurement, this book also gives readers what they need to know to properly interpret the results from standardized achievement and scholastic aptitude tests. Topics include: test reliability and validity; meaning and application of the norms; extraneous factors that influence performance of cognitive tests; the development of educational measures; and more. Teachers, principals, and counselors.

This encyclopedia is the first major reference guide for students new to the field, covering traditional areas while pointing the way to future developments.

This book is open access under a CC BY-NC 2.5 license.​​ This book describes the extensive contributions made toward the advancement of human assessment by scientists from one of the world’s leading research institutions, Educational Testing Service. The book’s four major sections detail research and development in measurement and statistics, education policy analysis and evaluation, scientific psychology, and validity. Many of the developments presented have become de-facto standards in educational and psychological measurement, including in item response theory (IRT), linking and equating, differential item functioning (DIF), and educational surveys like the National Assessment of Educational Progress (NAEP), the Programme of international Student Assessment (PISA), the Progress of International Reading Literacy Study (PIRLS) and the Trends in Mathematics and Science Study (TIMSS). In addition to its comprehensive coverage of contributions to the theory and methodology of educational and psychological measurement and statistics, the book gives significant attention to ETS work in cognitive, personality, developmental, and social psychology, and to education policy analysis and program evaluation. The chapter authors are long-standing experts who provide broad coverage and thoughtful insights that build upon decades of experience in research and best practices for measurement, evaluation, scientific psychology, and education policy analysis. Opening with a chapter on the genesis of ETS and closing with a synthesis of the enormously diverse set of contributions made over its 70-year history, the book is a useful resource for all interested in the improvement of human assessment.