Statistical properties of responses to dichotic listening with CV nonsense syllables

Charles Speaks, Nancy Niccum, Edward Carney

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


Twenty-four listeners received 20 dichotic listening runs of 30 pairs of natural CV nonsense syllables per run. Left- and right-ear responses are represented by two partially overlapping normal distributions with equal variance. Observed ear advantages across listening runs are also distributed normally. The means of the distributions of ear advantage are listener specific, but the standard deviations are 10.8%±2.5. The origin of reversals in direction of ear advantage among listening runs is statistical—a small mean/sigma ratio—and approximately six listening runs (180 listening trials) are required to achieve a split-half reliability coefficient of +0.90.

Original languageEnglish (US)
Pages (from-to)1185-1194
Number of pages10
JournalJournal of the Acoustical Society of America
Issue number4
StatePublished - Oct 1982


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