Just an FYI, while the cause of stuttering isn't 100% definite, there is strong research suggesting that the cause is physiological - NOT psychological. I mean this in a friendly way...please do more research before jumping into a masters thesis that not only challenges well established research, but also suggests that parenting style (I guess during infancy and toddler age?) causes stuttering in older age (I hope you mean in early childhood/elem school, because adolescence or early adulthood honestly wouldn't make sense).