期刊名称：South African Journal of Communication Disorders
印刷版ISSN：0379-8046
电子版ISSN：2225-4765
出版年度：1990
卷号：37
期号：1
页码：35-38
DOI：10.4102/sajcd.v37i1.287
出版社：AOSIS OpenJournals
摘要：In spite of decades of research on stuttering, there are few unequivocal findings. Several reasons for this are offered and discussed. Particular attention is paid to the lack of one accepted definition of stuttering. Other issues concern the unit of stuttering, inter-and intra-stutterer variability, the overt and covert features if stuttering, objective and subjective measures in stuttering research and the sampling of material for study. These are some of the problems which pertain to study of the nature of stuttering. They apply also to research on therapy, which presents additional challenges to the researcher.
