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Professor Schepers has written a text on the theory and practice of psychological test construction that will help students, teachers, and professional psychologists to master the complexities of the art and science of test construction. The book has many strengths, but two in particular stand out. Firstly, Professor Schepers expertly derives all the formulas of reliability from a single formal definition. The second strength is the way in which Professor Schepers extends concepts and techniques that were originally developed for dichotomous test items (as typically found in ability tests) to...

Factor Analysis Professor Schepers' book is designed to introduce postgraduate students to the fundamentals of factor analysis, which provides the groundwork for a deep understanding of the technique. Emphasising the centroid method, Professor Schepers demonstrates how factor analysis is done - right through the factor extraction and rotation process - which the serious student can follow and repeat step by step. His book will provide them with a solid understanding of what actually happens when they press the Analyse button on their computer keyboards.