First published in 1986. This volume presents a selection of 'advances' in the field of behaviour science in psychology. It can be used as a pick-up guide, with chapters arranged into three kinds of advances: theoretical or philosophical, empirical, and methodological. The preface includes a summary of each of the chapters which range from the role of theory in the behaviour analysis of private events, to the use of residential laboratories with programmed environments for the study of behaviours.