Previous research has reported instances in which some two-year-olds failed to overextend in comprehension what they overextended in use. Fremgen and Fay found no instance of overextension in comprehension in separate experiments. From this Fremgen and Fay conclude children never overextend in comprehension. This conclusion is re-evaluated here.…

A line of reasoning used in recent research on language acquisition assumes that a child acquiring the language has only two reliable sources of information available about the target grammar: a set of grammatical principles and the primary data of the language spoken around him. A third kind of evidence, negative evidence, would be helpful but is…

The progressive inflection "-ing" appears to be the earliest verb inflection acquired by children learning English as their first language. Explanations are made on why the progressive is rarely, if ever, overgeneralized to inappropriate forms. (SW)

One of the most important capacities which children employ when learning language is the capacity to generalize. A child who hears an utterance of a verbal expression while perceiving a particular object (or action, aspect, etc.) becomes normally able to apply the expression not only to this object but also to all those objects which, for him, are…