Examlex
The ability of one person or nation to produce a good at a lower opportunity cost than another is called a(n)
Preoperational Stage
A Piagetian stage of early childhood marked by the acquisition of mental representation and symbolic functions.
Semiotic Function
The ability of signs, symbols, or languages to represent objects, actions, ideas, or concepts indirectly, which is fundamental in communication and thinking.
Reversibility
The concept that certain processes can be undone, returning to the original state by reversing the process that caused the change.
Egocentrism
A cognitive bias where an individual has difficulty understanding or assuming any perspective other than their own, often discussed in the context of child development.
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