The study of speech errors, or "slips of the tongue," is a time-honored methodology which serves as a window to the representation and processing of language and has proven to be the most reliable source of data for building theories of speech production planning. However, until "Kids' Slips," there has never been a corpus of such errors from children with which to work. This is the first developmental linguistics research volume to document how online processing is revealed in young children, ages 18 months through 5 years, through their slips of the tongue. Thus, this text provides a new methodology and data source, which will greatly expand our ability to uncover the details of early language development. The author's groundbreaking book incorporates both details of her methodology and findings with implications for different aspects of language development, including phonetics and phonology, the lexicon, semantics, morphology, and syntax. While all the child data is included in the book, a Web site hosted by the author provides readers with the adult data as well. This book targets those who study language development in linguistics, developmental psychology, and speech and hearing, as well as those who study language representation and processing more generally in the same disciplines. Following a preface, this book is divided into the following chapters: (1) Kids' Slips as Evidence for Language Development; (2) Kids' Slips and Adults' Slips: General Comparison; (3) Phonetics and Phonology; (4) The Lexicon and Lexical Errors; (5) Semantic Relationships in Lexical Errors; (6) Morphology and Syntax; and (7) Child Data.