Ian Schagen, Dougal Hutchison
01 April 1994
This book is essential reading, not only for researchers and test developers within the field of National Curriculum Assessment, but for all concerned with the reliability of these assessments. The papers cover a wide range of topics, including philosophical issues and technical statistical techniques, as well as practical results and research based on in-depth classroom observation. The authors are experienced researchers in this area, and the discussants include both academics and government employees involved in test development.