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Key Terms
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Below are the key terms featured in this chapter. The textbook's full glossary is also available for online searching.

Accommodation  In Piaget's theory, adjustment to new information
Assimilation  In Piaget's theory, incorporation of new information into existing knowledge
Behavioural and social cognitive approach  The theory that behaviour, environment, and person/cognitive factors are important in understanding development
Congruence  The relationship between a person’s ideal self and real self
Eclectic theoretical orientation  Does not follow one theoretical approach but selects from each theory whatever is considered the best in it
Ecological approach  Bronfenbrenner’s environmental systems theory that focuses on five environmental systems
Erikson’s theory  Eight stages of psychosocial development unfold throughout the human life span.
Ethology  An approach that stresses that behaviour is strongly influenced by biology, tied to evolution, and characterized by critical or sensitive periods
Humanists  Psychologists who believe people work hard to become the best they can possibly be
Incongruity  The gap between the real self and the ideal self
Information-processing approach  Individuals manipulate information, monitor it, strategize about it
Piaget’s theory  Children actively construct their understanding of the world and go through four stages of cognitive development.
Psychoanalytic approach  Development is primarily unconscious; it is important to analyze symbolic meanings of behaviour; early experience is important to development
Vygotsky’s theory  A sociocultural cognitive theory that emphasizes the role of language and social relations







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