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The Smith family's disposable income rose from $40 000 per year to $42 000 and his desired consumption expenditure rose from $38 000 to $39 600.It can be concluded that their
Formal-Operations
The final stage in Piaget's theory of cognitive development, characterized by the ability to think abstractly and reason logically.
Lev Vygotsky
A Russian psychologist known for his work on cognitive development, specifically the social interaction theory which posits that community plays a central role in the process of making meaning.
Zone Of Proximal Development
The difference between what a learner can do without help and what they can achieve with guidance and encouragement from a skilled partner.
Erik Erikson
A developmental psychologist and psychoanalyst known for his theory on the psychological development of human beings.
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