According to the Chomskyan tradition, language acquisition is easy for children because they are born with a universal grammar in their minds.
Finally, grammars and metagrammars are ranked by three levels of adequacy: observational, descriptive, and explanatory.
Scholars explored the formalism of syntax and psychology of grammar under this model.
This led to more systematic research on linguistic data such as native speaker judgments and distinctions in grammaticality.
Many notable linguists have written on the topic, including Andrew Radford,[2] Rodney Huddleston,[3] and Roger Fowler.