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Unscheduled telephone calls to measure percent syllables stuttered during clinical trials.

AbstractPURPOSE:
Researchers have used unscheduled telephone calls for many years during clinical trials to measure adult stuttering severity before and after treatment. Because variability is a hallmark of stuttering severity with adults, it is questionable whether an unscheduled telephone call is truly representative of their everyday speech.
METHOD:
The authors studied the speech of 9 men and 1 woman for a 12-hr day during different speaking activities. On that day and 1 week prior to that day, participants received an unscheduled 10-min telephone call from a person unknown to them. The authors compared the percent syllables stuttered (%SS) for the unscheduled telephone call on the day to the %SS of the unscheduled telephone call 1 week prior to the day and to the %SS during the entire day.
RESULTS:
No significant differences were found, and all confidence intervals with t tests included 0. The concordance correlation test also showed a strong positive correlation between %SS scores for the entire day and for the unscheduled 10-min telephone call.
CONCLUSION:
The authors conclude that there is no reason to doubt that 10-min unscheduled telephone calls are a representative speech sample for %SS during clinical trials of stuttering treatments.
AuthorsHamid Karimi, Sue O'Brian, Mark Onslow, Mark Jones, Ross Menzies, Ann Packman
JournalJournal of speech, language, and hearing research : JSLHR (J Speech Lang Hear Res) Vol. 56 Issue 5 Pg. 1455-61 (Oct 2013) ISSN: 1558-9102 [Electronic] United States
PMID23785177 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Topics
  • Adult
  • Aged
  • Cognitive Behavioral Therapy
  • Female
  • Humans
  • Male
  • Middle Aged
  • Severity of Illness Index
  • Social Environment
  • Speech
  • Speech Production Measurement (methods)
  • Speech Therapy (methods)
  • Stuttering (diagnosis, therapy)
  • Telephone
  • Treatment Outcome

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