Self-contained ear-level devices delivering altered auditory feedback (AAF) for the application with those who stutter have only been recently developed. The paper examines the first therapeutic application of self-contained ear-level devices in three experiments. The effect of the device on the proportion of stuttered syllables and speech…

Sixteen adult stutterers were randomly assigned to one of two groups: awareness training plus regulated-breathing or Azrin and Nunn's regulated-breathing method only. Awareness training significantly reduced stuttering compared to the control procedure. But the most significant improvement appeared after introduction of the regulated-breathing…

The study evaluated the effectiveness of an assertiveness training program with three young adult male stutterers. The program included instruction, modeling, behavior rehearsal, feedback, social reinforcement, and homework. Results indicated substantial increases during employment interviews in such target behaviors as responding to pejorative…