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Key Terms
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accommodation  Piaget's term to describe the manner by which cognitive structures change.
adaptation  One of the two functional invariants in Piaget's theory.
assimilation  Piaget's term to describe the manner in which we incorporate data into our cognitive structures.
bioecological model  The continuity and change in the biopsychosocial characteristics of human beings, both as individuals and as groups.
classical conditioning  The learning process in which a neutral stimulus produces an involuntary response that is usually elicited by another stimulus.
cognitive structures  Piaget's term to describe the basic tools of cognitive development.
defense mechanisms  Psychological strategies to cope with anxiety or perceived threats.
developmental systems theory  Set of beliefs leading to the conclusion that we construct our own views of the world.
ego  Freud's notion of the central part of our personality; keeps id in check.
equilibration  Piaget's term to describe the balance between assimilation and accommodation.
evolutionary developmental psychology  Explanation of development that rests on the assumption that our physiological and psychological systems resulted from evolution by selection.
exosystem  Environment in which the developing person is not present but that nevertheless affects development.
extinction  The systematic process in which behaviors are deconditioned or eliminated.
identity crisis  Erikson's term for those situations, usually in adolescence, that cause us to make major decisions about our identity.
id  Freud's structure of mind relating to our basic instincts; strives to secure pleasure.
information-processing theory  Cognitive theory that uses a computer metaphor to understand how the human mind processes information.
life course theory  Theory referring to a sequence of socially defined, age-graded events and roles that individuals enact over time.
life crisis  Erikson's term to describe the main tension that individuals experience and seek to resolve during each of eight life stages.
macrosystem  The blueprint of any society.
mesosystem  The relationship among microsystems.
microsystem  The home or school.
modeling  Bandura's term for observational learning.
negative reinforcement  An event that, when it ceases to occur, makes that response more likely to happen in the future.
object permanence  The realization that objects continue to exist even when they cannot be seen, heard, or touched.
observational learning  Bandura's term to explain the information we obtain from observing other people, things, and events.
operant conditioning  The use of consequences (reinforcement, punishment) to modify or shape voluntary behavior or actions.
positive reinforcement  An event that increases the likelihood of a desired response in the future.
psychoanalytic theory  Freud's theory of the development of personality; emphasis on the role of the unconscious.
psychosocial theory  Erikson's stage theory that emphasizes the impact of social experiences throughout human development.
punishment  Process by which an unpleasant response is paired with an undesired behavior to decrease the likelihood of that behavior occurring in the future.
reciprocal interactions  Interactions that shape relationships with others.
reinforcement  Anything that increases the likelihood a response will occur in the future.
schemes  Piaget's term for organized patterns of thought and action.
self-efficacy  A person's belief that she can behave in a certain way to achieve a desired goal.
social (cognitive) learning  Bandura's theory that refers to the process whereby the information we glean from observing others influences our behavior.
superego  Freud's concept of our conscience; internal determinant of right and wrong.
theory  A belief or idea that develops based on information or evidence; a proposed explanation for observed phenomena.
zone of proximal development  Vygotsky's term for a range of ability in a given task, where the higher limit is achieved through interaction with others.







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