It is enraging how much people just attribute stuttering to mechanical and biological causes that cant be changed whereas people have been using successfully the psychological approach for more than 40 years. It just enrages me how SLPs dont use this or dont care to research enough. Then they will say there is no research evidence behind it. I know and it is sad . But research needs funding and intention and if 99.99% of people that stutter use the psychological approach and recover I dont think we need studies so much anymore .