Diagnosis is an essential part of scientific research. It refers to the process of identifying a phenomenon, property, or condition on the basis of certain signs and by the use of various diagnostic procedures. This book is the first ever to consider the use of diagnostics in syntactic research and focuses on the five core domains of natural language syntax - ellipsis, agreement, anaphora, phrasal movement, and head movement. Each empirical domain is considered in turn from the perspectives of syntax, syntax at the interfaces, neuropsycholinguistics, and language diversity. Drawing on the expertise of 20 leading scholars and their empirically rich data, the book presents current thoughts on, and practical answers to, the question: What are the diagnostic signs, techniques and procedures that can be used to analyse natural language syntax? It will interest linguists, including formalists, typologists, psycholinguists and neurolinguists.

Drawing on the expertise of over 20 leading scholars and their empirically rich data, this book presents current thoughts on, and practical answers to, the question: What are the diagnostic signs, techniques and procedures that can be used to analyse natural language syntax?

In this book, leading linguists explore the empirical scope of syntactic theory, by concentrating on a set of phenomena for which both syntactic and nonsyntactic analyses appear plausible. The volume is organized into four thematic sections: architectures; syntax and information structure; syntax and the lexicon; and lexical items at the interfaces

This handbook is the first volume to provide a comprehensive, in-depth, and balanced discussion of ellipsis phenomena, whereby the meaning of an utterance is richer than would be expected based solely on its linguistic form. Natural language abounds in these apparently incomplete expressions, such as I laughed but Ed didn't, in which the final portion of the sentence, the verb 'laugh', remains unpronounced but is still understood. The range of phenomena involved raise general and fundamental questions about the workings of grammar, but also constitute a treasure trove of fine-grained points of inter- and intralinguistic variation. The volume is divided into four parts. In the first, authors examine the role that ellipsis plays and how it is analysed in different theoretical frameworks and linguistic subdisciplines, such as HPSG, construction grammar, inquisitive semantics, and computational linguistics. Chapters in the second part highlight the usefulness of ellipsis as a diagnostic tool for other linguistic phenomena including movement and islands and codeswitching, while part III focuses instead on the types of elliptical constructions found in natural language, such as sluicing, gapping, and null complement anaphora. Finally, the last part of the book contains case studies that investigate elliptical phenomena in a wide variety of languages, including Dutch, Japanese, Persian, and Finnish Sign Language.

This book provides a comprehensive introduction to the theory and practice of diagnostic classification models (DCMs), which are useful for statistically driven diagnostic decision making. DCMs can be employed in a wide range of disciplines, including educational assessment and clinical psychology. For the first time in a single volume, the authors present the key conceptual underpinnings and methodological foundations for applying these models in practice. Specifically, they discuss a unified approach to DCMs, the mathematical structure of DCMs and their relationship to other latent variable models, and the implementation and estimation of DCMs using Mplus. The book's highly accessible language, real-world applications, numerous examples, and clearly annotated equations will encourage professionals and students to explore the utility and statistical properties of DCMs in their own projects. This book will appeal to professionals in the testing industry; professors and students in educational, school, clinical, and cognitive psychology. It will also serve as a useful text in doctoral-level courses in diagnostic testing, cognitive diagnostic assessment, test validity, diagnostic assessment, advanced educational measurement, psychometrics, and item response theory