Examlex
Which of Jean Piaget's stages of cognitive development is characterized by abstract thinking and the creation of hypotheticals?
Ages
Refers to the length of time that an individual, object, or phenomenon has existed.
Volunteers
Individuals who offer themselves for a service or undertaking willingly and without pay.
Standard Deviation
A measure of the amount of variation or dispersion of a set of values, indicating how much the values in a data set differ from the mean.
Range
The difference between the highest and lowest values in a dataset, indicating the dataset's spread.
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