Examlex
Define random sample.
Medical Equipment
Devices used in medical practice to diagnose, prevent, or treat diseases or medical conditions.
Cognitive Development
A process involving the growth and enhancement of mental abilities, such as thinking, reasoning, problem-solving, and understanding, throughout a person's life.
Formal Operations
The final stage of cognitive development in Piaget's theory, typically beginning around age 12, characterized by the ability to think abstractly, logically, and systematically.
Jean Piaget
A Swiss psychologist known for his pioneering work in child development, specifically his theory of cognitive development that explains how children construct a mental model of the world.
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