"Language acquisition research is challenging the intricate behavioral and cognitive foundations of speech are difficult to measure objectively. The audible components of speech, however, are quantifiable and thus provide crucial data. This practical guide synthesizes the authors' decades of experience into a comprehensive set of tools that will allow students and early career researchers in the field to design and conduct rigorous studies that produce reliable and valid speech data and interpretations. The authors thoroughly review specific techniques for obtaining qualitative and quantitative speech data, including how to tailor the testing environments for optimal results. They explore observational tasks for collecting natural speech and experimental tasks for eliciting specific types of speech. Language comprehension tasks are also reviewed so researchers can study participants' interpretations of speech and conceptualizations of grammar. Most tasks are oriented towards children, but special considerations for infants are also reviewed, as well as multilingual children. Chapters also provide strategies for transcribing and coding raw speech data into reliable data sets that can be scientifically analyzed. Furthermore, they investigate the intricacies of interpretation so that researchers can make empirically sound inferences from their data and avoid common pitfalls that can lead to unscientific conclusions"--Publicity materials. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

• Contents
• Preface
• Acknowledgments
• Introduction
• I Fundamentals of Language Acquisition Research
  • 1 The Challenge of Studying Language
  • 2 Preparing to Work With Children, Schools, and Families
  • 3 Creating the Data I: Working in Teams, Basic Data Collection, Data Sharing, and Data Management
• II Experimental and Observational Methods in Language Acquisition Research
  • 4 Studying Language Acquisition Through Collecting Speech
  • 5 Introduction to Experimental Methods: Design and Analysis
  • 6 Experimental Tasks for Generating Language Production Data
  • 7 Experimental Tasks for Generating Language Comprehension Data
  • 8 The Grammaticality Judgment Task
• III Managing and Interpreting Speech Data
  • 9 Creating the Data II: Begin Data Processing
  • 10 Creating the Data III: Preparing for Data Analysis
  • 11 Interpreting the Data: Scientific Inference
• IV Special Considerations in Language Acquisition Research
  • 12 Assessing Multilingual Acquisition
  • 13 Introduction to Infant Testing Methods in Language Acquisition Research
  • 14 Conclusions and Proceeding to the Future
• Appendix A Transcription Symbols
• Appendix B The International Phonetic Alphabet
• Appendix C Outline for Preparation of Schematic Research Proposal
• Suggested Readings
• References
• Index
• About the Authors