Study of Child Language Acquisition in the Human Speechome Project

What is the relationship between the input children hear and the words they acquire? We are investigating the role of variables such as input word frequency and prosody in one child's lexical acquisition using the Human Speechome Project corpus. We are analyzing data from ages nine to 24 months, including the child's first productive use of language at about 11 months, ending at the child�s active use of a vocabulary with more than 500 words.