Final answer:
Children's unique sentence production, such as "I goed outside to play," is explained by overgeneralization during language development, where children apply general language rules to exceptions. Language acquisition is influenced by both innate biological capacities (LAD) and environmental interactions.
Step-by-step explanation:
The production of unique sentences by children, such as "I goed outside to play," is best explained by the concept of overgeneralization in language development. This phenomenon occurs when children extend a general language rule to situations that are actually exceptions. For instance, adding an "s" to make words plural in English leads to children saying "gooses" instead of "geese." As children's lexicon grows, they demonstrate an understanding of language rules, even if they haven't mastered all the exceptions. Language acquisition is a complex process that researchers believe is the product of both innate biological mechanisms and interactions with the environment. The language acquisition device (LAD) proposed by Noam Chomsky suggests an inborn ability to learn language, while B. F. Skinner emphasized learning through reinforcement. Today, it is understood that both nature and nurture play a role in language development.