At Age Three Emily Was Beginning to Master Her Spoken

question 54

Multiple Choice

At age three Emily was beginning to master her spoken language,but she was also able to use her hands to speak some words in sign language.According to Jean Piaget,what stage of cognitive development was Emily in?

• A) concrete operational
• B) preoperational
• C) formal operational
• D) egocentric

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Definitions:

Variance

A measure of the spread of a set of values, calculated as the average of the squared deviations from the mean.

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A statistical concept that calculates the average outcome of a future event that may or may not happen, taking into account all possible scenarios and their probabilities.

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