The second edition of this internationally acclaimed title is the ideal handbook for those wishing to design or implement an epidemiological study. It provides an overview of numerous different techniques of exposure measurement of individuals, along with many specific details for each technique. It includes clear and comprehensive guidance on minimizing measurement error.The objective of much epidemiological research is to relate exposure toexternal agents to the occurrence of particular diseases. The achievement of this objective depends critically on accurate measurement of exposure. This book brings together the principles andtechniques of exposure measurement as they relate specifically to causes of non-infectious diseases. In doing so, it draws on experience and results from a number of disciplines, including psychology, survey research, sociology, environmental hygiene, epidemiology and biostatistics, and synthesizes them for direct practical application in epidemiological and related research.