Description:
Validity is a clear, substantive introduction to the two most fundamental aspects of defensible testing practice: understanding test score meaning and justifying test score use.
Review Quotes:
"The book contains a wide range of practical examples of various potential concerns surrounding the validity of a wide range of assessment tools and mechanisms. As a result, it is not just a theoretical analysis of the subject but also a practical guide to anyone embarking on research. Each chapter ends with a brief summary and a statement of the conclusions... it is an important contribution to the literature and I would suggest it will prove invaluable to all those embarking on initial training, doctoral studies or post qualification research." - Jeremy Swinson, Educational Psychology in Practice