I can't post the paper yet. It's not published yet and I can't share it until it is. However, here are links to other papers you might find helpful. [The effect of an intensive group therapy program for young adults who stutter: A single subject study](http://informahealthcare.com/doi/abs/10.1080/17549500802600990) [Effectiveness of intensive, group therapy for teenagers who stutter](http://onlinelibrary.wiley.com/doi/10.1111/1460-6984.12051/full) Regarding insurance reimbursement the Guitar paper documents that communication attitude is a substantial predictor of long-term maintenance of fluency. If you pair this with either the Communication Attitude Test (CAT) or the Overall Assessment of the Speaker's Experience with Stuttering (OASES) (particularly the CAT) you will have data to demonstrate the efficacy of addressing the cognitive components of stuttering treatment and the peer-reviewed documentation indicating that this is a necessary component of treatment. [Pretreatment factors associated with the outcome of stuttering therapy](http://jslhr.pubs.asha.org/article.aspx?articleid=1749833)