Calling all animals "doggie" is an example of what common developmental process of language acquisition? overregularization

underextension

fast mapping

overextension

overextension

Explanation:

Toddlers make categorical overextensions when they extend a word they know to other words in the same category. For example, if a child learns the word dog and then calls all four-legged animals "dog," he or she is making a categorical overextension.

overextension

Explanation:

Overextension basically means the overly broad use of a word to the fact that its meaning is overgeneralized. "Doggie" is used in a broader context than is appropriate because all animals cannot apply to the criteria.

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