Examlex
The relative frequency of a category is calculated by dividing the category's frequency by the total number of observations.
Piaget
A Swiss psychologist famous for his pioneering work in child development, particularly his theory of cognitive development that describes how children construct a mental model of the world.
Middle Childhood
A developmental stage typically ranging from ages 6 to 12, characterized by cognitive, social, and emotional growth, as children enter school and expand their social world.
Perspective-taking Skills
The cognitive capacity to consider a situation or understand a concept from an alternative point of view, including others' thoughts and feelings.
Egocentric
In developmental psychology, a stage where a child is unable to differentiate between their own perspective and that of others, often occurring in early childhood.
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