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Ecological systems theory, also called development in context or human ecology theory, identifies five environmental systems with which an individual interacts. This theory provides the framework from which community psychologists study the relationships with individuals' contexts within communities and the wider society. Ecological systems theory was developed by Urie Bronfenbrenner. ==The five systems== * ''Microsystem'': Refers to the institutions and groups that most immediately and directly impact the child's development including: family, school, religious institutions, neighborhood, and peers. * ''Mesosystem:'' Interconnections between the microsystems, Interactions between the family and teachers, Relationship between the child’s peers and the family * ''Exosystem:'' Involves links between a social setting in which the individual does not have an active role and the individual's immediate context. For example, a parent's or child's experience at home may be influenced by the other parent's experiences at work. The parent might receive a promotion that requires more travel, which might increase conflict with the other parent and change patterns of interaction with the child. * ''Macrosystem:'' Describes the culture in which individuals live. Cultural contexts include developing and industrialized countries, socioeconomic status, poverty, and ethnicity. A child, his or her parent, his or her school, and his or her parent's workplace are all part of a large cultural context. Members of a cultural group share a common identity, heritage, and values. The macrosystem evolves over time, because each successive generation may change the macrosystem, leading to their development in a unique macrosystem.〔Kail, R. V., & Cavanaugh, J. C. (2010). The Study of Human Development. Human Development: A Life-span View (5th ed.). Belmont, CA: Wadsworth Cengage Learning.〕 * ''Chronosystem:'' The patterning of environmental events and transitions over the life course, as well as sociohistorical circumstances. For example, divorces are one transition. Researchers have found that the negative effects of divorce on children often peak in the first year after the divorce. By two years after the divorce, family interaction is less chaotic and more stable. An example of sociohistorical circumstances is the increase in opportunities for women to pursue a career during the last thirty years.〔Santrock, John W. (2007). ''A Topical Approach to Life-Span Development''. New York, NY: McGraw-Hill.〕 The person's own biology may be considered part of the microsystem; thus the theory has recently sometimes been called "Bio-Ecological Systems Theory." Per this theoretical construction, each system contains roles, norms and rules which may shape psychological development. For example, an inner-city family faces many challenges which an affluent family in a gated community does not, and vice versa. The inner-city family is more likely to experience environmental hardships, like crime and squalor. On the other hand, the sheltered family is more likely to lack the nurturing support of extended family.〔Vander Zanden, J. W., Crandell, T. L., Crandell, C. H. (2007).''Human Development''. 8th edition (ed.), New York: McGraw Hill.〕 Since its publication in 1979, Bronfenbrenner's major statement of this theory, ''The Ecology of Human Development'' 〔Bronfenbrenner, U. (1979). ''The Ecology of Human Development: Experiments by Nature and Design''. Cambridge, MA: Harvard University Press. (ISBN 0-674-22457-4)〕 has had widespread influence on the way psychologists and others approach the study of human beings and their environments. As a result of his groundbreaking work in "human ecology", these environments — from the family to economic and political structures — have come to be viewed as part of the life course from childhood through adulthood. Bronfenbrenner has identified Soviet developmental psychologist Lev Vygotsky and German-born psychologist Kurt Lewin as important influences on his theory. Bronfenbrenner's work provides one of the foundational elements of the ecological counseling perspective, as espoused by Robert K. Conyne, Ellen Cook, and the University of Cincinnati Counseling Program. There are many different theories related to human development. The ecological theory emphasizes environmental factors as playing the major role to development.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「ecological systems theory」の詳細全文を読む スポンサード リンク
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