Examlex
A normal distribution is a bell-shaped distribution of scores in which most scores cluster around the mean.
Perceptual Development
The gradual development of the sensory systems and the interpretation of sensory information throughout childhood.
Formal Operations
A stage in Piaget's theory of cognitive development, typically starting around age 12, where individuals develop the ability to think abstractly, logically, and systematically.
Concrete Operations
The stage in Piaget's theory of cognitive development in which children aged about 7 to 12 years become capable of logical thought processes but are not yet adept at abstract reasoning.
Preoperational
Pertains to Piaget’s stage of cognitive development (typically ages 2-7) in which children start to use language to explore and understand their environments, but do not yet use logical mental operations.
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