synchrony: Infant attention to speech in and out of synchrony.

In trobinj/trtools: Miscellaneous Tools for Teaching Statistics

Infant attention to speech in and out of synchrony.

Description

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.

Usage

synchrony

Format

A data frame 12 observations and three variables:

subject:

infant identifier

insync:

percent of time attending to the person speaking in the in-synchrony condition

outsync:

percent of time attending to the person speaking in the out-of-synchrony condition

Note

The data are from Dodd (1979) and were featured in Siegel and Castellan (1988).

Source

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.

trobinj/trtools documentation built on Jan. 28, 2024, 3:20 a.m.