Several studies have been undertaken to determine the incidence of recovery from stuttering; however, the results of these investigations are not reliable due to methodological limitations. For the most part, ex-post-facto recall judgements on the parts of adults or parents of young children were relied upon in gathering data for the research. It would appear that a requisite factor in determining incidence of recovery from stuttering should be the use of a formal instrument which would quantify the auditory and visual aspects of speaking behavior to determine the presence or absence of stuttering. The primary purpose of this study was to determine the incidence of recovery from stuttering in a sample of children who had received treatment for stuttering and had subsequently been dismissed from treatment. Also examined was whether or not significant differences existed between the speaking performances of these subjects and a sample of control subjects of the same sex, grade level, and approximate academic ability. To control for experimental bias, a double-blind design was utilized. A secondary part of this study examined the possible effects of the former treatment received by the experimental subjects on the recovery from stuttering.