Describe Piaget's Theory of Cognitive Development

question 310

Essay

Describe Piaget's theory of cognitive development. Discuss each of the four stages described in his theory in terms of the thinking characteristic of children at each stage. What are the current criticisms of Piaget's theory?

---

Definitions:

Coefficient of Variation

A standardized measure of dispersion of a probability distribution or frequency distribution, expressed as a ratio of the standard deviation to the mean.

Extreme Values

Data points that significantly differ from other observations. They can be unusually high or low and may be considered outliers.

Median

The middle value in a sorted, ascending or descending, list of numbers.

Percentile

A value on a scale of 100 that indicates the percent of a distribution that is equal to or below it.