Zen and the art of validity theory

In Validity in Educational and Psychological Assessment, Paul Newton and Stuart Shaw provide a unique historical and conceptual overview of the psychometric concept of validity, as it arises in psychological and educational testing. In addition, they propose a novel integrated account of questions as they relate to validity in testing situations. Thus, the book offers invaluable historical material, and a conceptual framework that will help readers tease apart the many issues relevant to validity theory. In my view, that’s a bargain, so if you’re in a hurry and not inclined to read the rest of this review, let me wrap it up by giving you a simple piece of advice: if you are even remotely interested in validity theory, buy this book.