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How are globular clusters used to test stellar models?
Preoperational Stage
The second stage in Piaget's theory of cognitive development, occurring roughly between the ages of 2 and 7, characterized by the development of language and symbolic thinking but limited in logical reasoning.
Cognitive Development
The process by which individuals acquire and understand knowledge, including thinking, problem-solving, and decision-making, through various stages of growth.
Jean Piaget
A Swiss psychologist known for his pioneering work in child development, particularly his theory of cognitive development in children.
Strange Situation
A procedure developed by Mary Ainsworth in the 1970s to observe attachment relationships between a caregiver and child.
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