H. R. Beech & Fay Fransella 
Research and Experiment in Stuttering [PDF ebook] 
International Series of Monographs in Experimental Psychology

Research and Experiment in Stuttering presents the phenomena and characteristics of stuttering. This book describes the types of stuttering that may appear in many different psychological and physical settings. Organized into seven chapters, this book starts with a discussion of the definition of stuttering, which usually refers to particular forms of interruption to the free flow of speech with sufficient frequency to considerably impede verbal communication. This text then discusses several matters, including sex ratios of stutterers, incidence of stuttering, and prognosis of the disorder. Other chapters explain how the idea of psychological causation for stuttering developed. This book discusses as well the common observation that the stutterer appears to have a usually higher level of anxiety that the nonstutterer. The final chapter deals with the three significant procedures that have been used as methods for the modification of stuttering. This book is a valuable resource for psychologists and psychiatrists.