Berko's experiment with bird-like dolls called "wugs" tested whether young children know

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Berko's experiment, known as the Wug Test, was designed to investigate whether children can apply rules of grammar to unknown words, demonstrating their understanding of language structure. In this experiment, children were shown pictures of a fictional creature called a "wug" and then shown a picture of two of these creatures, prompting them to use the plural form. The correct application of the "s" sound at the end of the noun to form plurals indicated their intuitive grasp of English grammatical rules, specifically for forming plurals.

Berko's Experiment with Bird-Like Dolls Called "Wugs" Tested Whether Young