Our article contains an unfortunate misleading error in citing Olander, Smith, and Zelaznik (2010). This error occurs on page 14, first paragraph. We wrote that their study provided evidence that hand clapping coordination variability scores in early childhood predicted ultimate persistence or recovery from stuttering and that the recovered children were “back to normal” with the passage of time. Not so. Whereas Olander, Smith, and Zelaznik (2010), reported indications of subgroups among their children who stutter in terms of hand clapping coordination, and offered the possibility that such coordination might ultimately be predictive of persistence or recovery, no data were reported on this question in the above reference. Furthermore, the said study was cross-sectional in design, conducted at a single point in time, and no further data pertaining to the question have been published by these authors. We suspect that the confusion resulted from unintentional mixing by one of us (Yairi) of notes taken from the 2010 article with those taken from Professor Anne Smith’s conference presentations on speech coordination data from simple sentences. She reported that high variability in speech coordination is predictive of persistence and that, as we wrote “…the recovered children were back to normal.” We sincerely regret our erroneous text.
Footnotes
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