Evaluating the Effectiveness of Voice Therapy

Paul Carding
SKU: C079
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Functional, Organic and Neurogenic Voice Disorders

Details: 208 pages.  Paperback. 254x178mm (7 x 10")

ISBN: 978-1-909082-56-4. 

Release Date: 2017


First published almost 17 years ago, and in demand throughout, Evaluating Voice Therapy: Measuring the Effectiveness of Voice Therapy was one of the first books to address the need for a robust evidence base for the treatment of functional voice disorders. .

Now re-titled, this edition addresses the major advances in the evaluation of treatment of a range of voice disorders (functional, organic and neurogenic). The book is almost doubled in size and still retains the practical appeal and hands-on value of its predecessor. A number of core chapters are retained and re-written including Understanding the importance of study design and Choosing voice outcome measures. There are five major chapters that identify, summarise and critically appraise the literature pertaining to voice therapy efficacy for Functional Voice Disorders, Vocal Nodules, Organic Voice Disorders, Unilateral Vocal Fold Paralysis and Parkinson’s Disease Voice Disorder. The book is organized so that voice clinicians and researchers will be able to quickly locate and understand the evidence base for specific client groups.



List of Contributors

Forewords by:

Prof Robert Hillman (Harvard USA)

Prof Janet Wilson (Newcastle University UK)

Prof Martin Birchall (University College London UK)



1. The need for evidence of treatment effectiveness. Paul Carding:

- Why do we still need evidence of treatment effectiveness?

- Is the concept of EBP still relevant?

- Hierarchies of evidence and the problems therein

- The structure of this book


2. The importance of study design. Paul Carding

- Different study designs for evaluating intervention effectiveness

- The 5-phase model of efficacy research

- Common flaws in study design

- Independent and dependent variables in voice therapy studies

- How do you judge the internal validity of a study?

- How do you judge the external validity of a study?

- Some basic statistical concepts


3. The effectiveness of voice therapy for functional voice disorders. Marianne Bos-Clark and Paul Carding:

- What we know already about treating FVD

- How robust is the recent evidence of effectiveness for FVD?

- What do we know about the therapy content of effective intervention?

- The outcome measures (validity, reliability, sensitivity to change)

- Summary table of all voice therapy FVD effectiveness studies 2000–2015


4. The effectiveness of voice therapy for vocal nodules. Sherry Fu and Paul Carding        

- Defining vocal nodules

- Treatment of vocal nodules

- Behavioural voice therapy for vocal nodules

- Effectiveness of voice therapy for vocal nodules (Phase I, II and III efficacy studies)

- Long term benefits of therapy

- Absence of treatment response


5. The effectiveness of voice therapy for organic voice disorders (mass lesions). Sue Jones and

Paul Carding:

- Organic voice disorders and the role of voice therapy

- Before surgery, after surgery or both

- The nature of the voice therapy intervention

- The evidence of efficacy

- Where to from here?


6. The effectiveness of voice therapy for unilateral vocal fold paralysis. Chloe Walton and Paul Carding:

- What types of UVCP patients receive voice therapy?

- Pre-surgery, adjunct or primary option?

- Does voice therapy work for VCP patients?

- The state of the evidence and where to next


7. The effectiveness of voice therapy for patients with Parkinson’s Disease. Patricia Gillivan-Murphy and Paul Carding

- Voice problems for patients with PD

- What do we already know about the efficacy of voice therapy for PD?

- What we don’t know

- Evidence-base strengths and weaknesses

- The studies in detail

- Future directions


8. Techniques for measuring change in voice over time. Paul Carding

- Choosing the most appropriate outcome measures

- Some important properties of voice outcome measures

- Voice Outcome measures in the efficacy literature


9. The future. Paul Carding

- Are there enough high quality studies?

- Evidence-based practice and individualised treatment

- The danger of “recipe book” therapy

- Generalization and dissemination

- The future