Foreword; Dirk Hastedt.- 1 Introduction to Reliability and Validity of International Large-Scale Assessment; Hans Wagemaker.- 2 Study Design and Evolution, and the Imperatives of Reliability and Validity; Hans Wagemaker.- 3 Framework Development in International Large-Scale Assessment Studies; John Ainley and Wolfram Schulz.- 4 Assessment Content Development; Liz Twist and Julian Fraillon.- 5 Questionnaire Development in International Large-Scale...