Role of context in usability evaluations: A review <s> MOTIVATION <s> Forty years of collaboration in research and writing with Roger G. Barker have uniquely qualified the author to revise Barker's classic Ecological Psychology: Concepts and Methods for Studying the Environment of Human Behavior (1968). The author's primary goal has been to provide an up-to-date and comprehensive description of behavior setting theory and method with sufficient detail and illustration to guide new research applications. Barker's presentation of theory and method has been preserved except where changes were required to reflect the advances reported in Barker and Schoggen's Qualities of Community Life (1973). The lengthy report in Ecological Psychology of empirical findings from the study of behavior settings the town of Midwest has been replaced by extensive summaries of the currently available reports of research applications of behavior setting theory. Four new chapters have been added: a chapter be economist Karl A. Fox on the use of behavior settings in social system accounting, an article by Barker on behavior settings that have figured prominently in his career, a chapter that discusses behavior settings in relation to a number of other concepts in social science and the field of environment and behavior, and a final chapter on the need for an eco-behavioral science taken from two papers by Barker. <s> BIB001 </s> Role of context in usability evaluations: A review <s> MOTIVATION <s> M. M. SCOTT is the Herman B Wells endowed professor of educational psychology at Indiana University, Bloomington. She holds a Ph.D. in psychology from Peabody College (now of Vanderbilt University) in Nashville, Tennessee. Her research interests include natural habitat research methodologies, effects of behavior settings on behavior, theories of human development, and the history of psychology. She teaches ecological psychology, human development, and the history of psychology. <s> BIB002
In order to understand the relation between the context and the individual's behaviour we chose the widely accepted theory of behaviour settings. The theory of behaviour settings was introduced by Roger Garlock Barker in late 1940s BIB001 . He continuously collected empirical data from a small town in Kansas with less than 2000 people from 1947 through 1972 based on which he developed the theory of behaviour settings. Behaviour setting theory proposes that there are specific, identifiable units of the environment, the physical and social elements, which are combined into one unit, which have very powerful influences on human behaviour BIB002 . A behaviour setting is a naturally occurring unit of the environment at the molar (perceived as wholes as opposed to parts) level, recognized by its inhabitants, that is, people perceive that they conduct their lives inside behaviour settings [11;12;9] . Barker  observed that psychology is charged with making sense of both the psychological and the ecological environment. He examined that the distinction between human psychology and his ecological environment was difficult. Therefore, Barker focused on molar human behaviour rather than individual units. For example, he interpreted the act of buying a stamp as an entire unified behaviour not broken down into micro acts that followed the stamp buyer through the myriad of smaller components of the total act BIB001 . The interface of the ecological and molar behaviour creates ecological units  . According to Schoggen BIB001 these units arise simultaneously in physical, social, psychological and behavioural realms and share three common attributes: 1. They are self-generated as opposed to resulting from the observer's or researcher's interest or manipulation. 2. They have a time/space locus. 3. They have a boundary separating the internal pattern of the unit from the external pattern of the surround. A behaviour setting is a pattern of ecological units and consists of "standing pattern of behaviour" Barker  . Barker described the standing pattern as a milieu (settings), circumjacent, and synomorphic or fitting to the behaviour BIB001 . The behaviour is happening in a milieu and milieu matches the behaviour. The close interrelation of location/settings and people as seen through the Barker's theory of behavior settings could be an indication that context is important and plays a vital role in influencing the results of usability evaluations.