Plural Publishing produces leading academic, scientific and clinical publications in the fields of speech-language pathology, audiology, and otolaryngology.


Clinical Research Methods in Speech-Language Pathology and Audiology

Third Edition
David L. Irwin, Norman J. Lass, Mary Pannbacker, Mary Ellen Tekieli Koay, Jennifer S. Whited
400 pages, Illustrated (B/W), Hardcover, 7 x 10"
Release Date:


Now in its third edition, Clinical Research Methods in Speech-Language Pathology and Audiology is a valuable and comprehensive resource for understanding and conducting clinical research in communication sciences and disorders.

Graduate students and practicing clinicians will benefit from the text's detailed coverage of various research topics. Specifically, readers will learn the strengths and weaknesses of different research methodologies, apply the results of research to clinical practice and decision-making, and understand the importance of research ethics.

Clinical Research Methods is the only text to take into account qualitative research and evidence-based practice, and to provide a detailed discussion of research ethics.

Key Features

  • Chapters begin with an outline of covered topics and learning objectives
  • End-of-chapter discussion questions apply concepts and incorporate real-life research situations
  • Numerous tables and charts display critical models and research procedures

New to the Third Edition

  • New co-authors, Mary Ellen Koay, PhD, CCC-SLP, FASHA, and Jennifer S. Whited, PhD, CCC-SLP, bring new and extensive research experiences to the team of authors
  • Expanded discussion of qualitative research methods
  • Additional and updated examples of mixed method designs published in speech-language pathology
  • Updated list of databases and sources for research in communication sciences and disorders
  • Updated references throughout, including many ASHA and AAA Codes of Ethics
  • Access to a PluralPlus companion website for instructors with PowerPoint lecture slides for every chapter

List of Tables
List of Figures
About the Authors

Chapter 1. Introduction to Research
Importance of Research in Communication Disorders
Historical Evolution of Research in Communication Disorders
Sources of Knowledge
Types of Research
Discussion Questions

Chapter 2. Ethics of Research in Speech-Language Pathology and Audiology
Need for Ethical Guidelines
Historical Background
Research Misconduct
Issues in Research Ethics
Sanctions for Unethical Conduct
Institutional Review Board
Teaching Research Ethics
Discussion Questions
Appendix 2-A
Appendix 2-B

Chapter 3. Research Problems
Basic Concepts and Terms
Control of Variables
Selecting a Topic
Selecting a Research Problem
Hypotheses and Theories
Feasibility of a Research Project
Budgetary Considerations and Preparation
Discussion Questions

Chapter 4. Locating, Accessing, and Assessing Information
Locating Information
Data Mining
Online Journals
Use of the World Wide Web
Interlibrary Loan
Manual Searches
Evaluating Research
Rating the Evidence
Levels of Evidence
Critical Appraisal
Discussion Questions

Chapter 5. Literature Review
Organizing Literature Reviews
Background Literature Reviews
Formulating Questions for Literature Reviews
Narrative Reviews
Systematic Reviews
Best-Evidence Synthesis
Clinical Practice Guidelines
Discussion Questions

Chapter 6. Measurement
Scales of Measurement
Validity of Measurement
Reliability of Measurement
Discussion Questions

Chapter 7. Research Design and Strategy
Characteristics of a Good Design
Group Designs
Single-Subject Designs
Sequential Clinical Trials
Technologic Applications and Research Designs
Discussion Questions

Chapter 8. Quantitative Research
Characteristics of Quantitative Research
Advantages and Disadvantages of Quantitative Research
Quantitative Research Designs
Quantitative Analysis
Discussion Questions

Chapter 9. Qualitative Research
Characteristics of Qualitative Research
Issues in Qualitative Research
Qualitative Research Designs
Data Collection Procedures
Analyzing Qualitative Data
Validity and Reliability
Criteria for Evaluation of Qualitative Research
Discussion Questions

Chapter 10. Multimethod Research
Characteristics of Multimethod Research
Advantages and Disadvantages of Multimethod Research
Research Designs
Examples of Mixed Method Design in Speech-Language Pathology
Evaluating Multimethod Research
Discussion Questions

Chapter 11. Reporting and Disseminating Research
Reasons for Reporting Research
Myths and Facts About Research Reports
Time Management for Reporting Research
Formats of Research Reports
Writing Styles
Rewriting and Revising
Translating Research Reports to Published Papers
Types of Research Reports
Evaluating and Reviewing Research Reports
Discussion Questions

Chapter 12. Evaluating Tests and Treatments
Evaluation Issues
Discussion Questions

Chapter 13. Evidence-Based Practice: Application of Research to Clinical Practice
Defining Evidence-Based Practice
Evidence-Based Practice: Terms and Definitions
Advantages and Disadvantages of Evidence-Based Practice
Myths About Evidence-Based Practice
Barriers to Evidence-Based Practice
Quality of Evidence: Levels and Grades of Evidence
Knowledge and Skills Needed for Evidence-Based Practice
Developing and Implementing Evidence-Based Practice
Communicating Evidence
Ethical Considerations
Discussion Questions

Chapter 14. Research Grants
The Grants Acquisition Process
Grant Seeking
Grant Proposal Writing
Grant Management
Discussion Questions
Study Exercises


About The Authors

David L. Irwin

David L. Irwin, PhD, CCC-SLP, received his BSE and MS degrees in speech-language pathology from the University of Central Missouri. He earned a PhD degree in communication disorders from the University of Oklahoma Health Sciences Center. He is currently Director of the Speech-Language Pathology program and Director of the Autism Center at the University of Louisiana-Monroe. He is a Fellow of the American Speech-Language-Hearing Association and received Honors of the Association from the Louisiana Speech-Language-Hearing Association. His primary areas of research include individuals with Autism Spectrum Disorder, professional issues and ethics and interprofessional practice and education. He has been the Principal Investigator (PI) for approximately $1.8 million in grants from federal, state, and private resources.

Norman J. Lass

Norman J. Lass, PhD, is Professor of Speech Pathology and Audiology, West Virginia University.

Mary Pannbacker

Mary Pannbacker, PhD, (1938-2015) was Professor Emeritus and the Albertson's Professor of Speech-Language Pathology, an endowed chair, in the Department of Rehabilitation Sciences at Louisiana State University Health Sciences Center-Shreveport.

Mary Ellen Tekieli Koay

Upon completion of her PhD degree at the University of Oklahoma Health Sciences Center, Dr. Tekieli Koay joined the faculty in the Department of Communication Sciences and Disorders at West Virginia University, where she is Professor and has taught, conducted research, supervised clinic, and served as Director of Graduate Studies over the past 43 years. She also served as Chairperson of the Department. Dr. Tekieli Koay has extensive experience teaching a wide variety of graduate and undergraduate courses with special emphasis in the areas of neuroanatomy and physiology, neuropathologies, and auditory processing disorders. She has over 280 international, national, regional, state, and local presentations and has presented all over the world. Her research interests include professional issues focusing on graduate education in speech-language pathology and audiology and auditory processing in children. Dr. Tekieli Koay is a Fellow of the American Speech-Language-Hearing Association.

Jennifer S. Whited

Jennifer Whited, PhD, CCC-SLP is an assistant professor and clinical supervisor in the Speech Language Pathology Program at the University of Louisiana Monroe. She teaches in the areas of literacy impairment, infant language, professional issues and adult neurological disorders. Dr. Whited is the director of the Community Literacy Project at ULM, which is a special research project that serves Monroe area students, schools and parents to support children with literacy impairments. Dr. Whited's research interests include childhood language and literacy impairment as well as aphasia in adults.

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To access the materials, log in to the website using the URL located inside the front cover of your copy of Clinical Research Methods in Speech-Language Pathology and Audiology, Third Edition.

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