synchrony | R Documentation |
Data from a study that investigated if 10- to 16-week old infants are aware of the synchrony between lip movements and speech sounds. Infants were placed in a soundproof room with a window through which they could see a person speaking. The sound of the speech (delivered through a microphone and speaker in the room with the infant) was either synchronous or out of synchrony due to a 400-millisecond delay. Each infants was observed in both conditions, and the percent of the time they attended to the person speaking was recorded.
synchrony
A data frame 12 observations and three variables:
infant identifier
percent of time attending to the person speaking in the in-synchrony condition
percent of time attending to the person speaking in the out-of-synchrony condition
The data are from Dodd (1979) and were featured in Siegel and Castellan (1988).
Dodd, B. (1979). Lip reading in infants: Attention to speech presented in- and out-of-synchrony. Cognitive Psychology, 11, 478-484.
Siegel, S. & Castellan, N. J. (1988). Nonparametric statistics for the behavioral sciences (Second Edition). New York: McGraw-Hill.
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