Quantifying sources of variability in infancy research using the infant-directed speech preferenceCitation formats

  • Authors:
  • The Many Babies Consortium

Standard

Quantifying sources of variability in infancy research using the infant-directed speech preference. / The Many Babies Consortium.

In: Advances in Methods and Practices in Psychological Science , Vol. 3, No. 1, 16.03.2020, p. 24-52.

Research output: Contribution to journalArticlepeer-review

Harvard

The Many Babies Consortium 2020, 'Quantifying sources of variability in infancy research using the infant-directed speech preference', Advances in Methods and Practices in Psychological Science , vol. 3, no. 1, pp. 24-52. https://doi.org/10.1177/2515245919900809

APA

The Many Babies Consortium (2020). Quantifying sources of variability in infancy research using the infant-directed speech preference. Advances in Methods and Practices in Psychological Science , 3(1), 24-52. https://doi.org/10.1177/2515245919900809

Vancouver

The Many Babies Consortium. Quantifying sources of variability in infancy research using the infant-directed speech preference. Advances in Methods and Practices in Psychological Science . 2020 Mar 16;3(1):24-52. https://doi.org/10.1177/2515245919900809

Author

The Many Babies Consortium. / Quantifying sources of variability in infancy research using the infant-directed speech preference. In: Advances in Methods and Practices in Psychological Science . 2020 ; Vol. 3, No. 1. pp. 24-52.

Bibtex

@article{c1a3c00c4a774abe8da004fb6f9e058b,
title = "Quantifying sources of variability in infancy research using the infant-directed speech preference",
abstract = "The field of psychology has become increasingly concerned with issues related to methodology and replicability. Infancy researchers face specific challenges related to replicability: high-powered studies are difficult to conduct, testing conditions vary across labs, and different labs have access to different infant populations, amongst other factors. Addressing these concerns, we report on a large-scale, multi-site study aimed at 1) assessing the overall replicability of a single theoretically-important phenomenon and 2) examining methodological, situational, cultural, and developmental moderators. We focus on infants{\textquoteright} preference for infant-directed speech (IDS) over adult-directed speech (ADS). Stimuli of mothers speaking to their infants and to an adult were created using semi-naturalistic laboratory-based audio recordings in North American English. Infants{\textquoteright} relative preference for96 IDS and ADS was assessed across 67 laboratories in North America, Europe, Australia, and Asia using the three commonly-used infant discrimination methods (head-turn preference, central fixation, and eye tracking). The overall meta-analytic effect size (Cohen{\textquoteright}s d) was 0.35 [0.29 - 0.42], which was reliably above zero but smaller than the meta-analytic mean computed from previous literature (0.67). The IDS preference was significantly stronger in older children, in those children for whom the stimuli matched their native language and dialect, and in data from labs using the head-turn preference procedure. Together these findings replicate the infant-directed speech preference but suggest that its magnitude is modulated by development, native language experience, and testing procedure",
keywords = "language acquisition, speech perception, Infant-directed speech, Reproducibility, experimental methods",
author = "{The Many Babies Consortium} and {De Ruiter}, Laura and Alissa Ferry and Iain Jackson and Anna Theakston and Katherine Twomey",
year = "2020",
month = mar,
day = "16",
doi = "10.1177/2515245919900809",
language = "English",
volume = "3",
pages = "24--52",
journal = "Advances in Methods and Practices in Psychological Science ",
issn = "2515-2459",
publisher = "Sage Publications Ltd",
number = "1",

}

RIS

TY - JOUR

T1 - Quantifying sources of variability in infancy research using the infant-directed speech preference

AU - The Many Babies Consortium

AU - De Ruiter, Laura

AU - Ferry, Alissa

AU - Jackson, Iain

AU - Theakston, Anna

AU - Twomey, Katherine

PY - 2020/3/16

Y1 - 2020/3/16

N2 - The field of psychology has become increasingly concerned with issues related to methodology and replicability. Infancy researchers face specific challenges related to replicability: high-powered studies are difficult to conduct, testing conditions vary across labs, and different labs have access to different infant populations, amongst other factors. Addressing these concerns, we report on a large-scale, multi-site study aimed at 1) assessing the overall replicability of a single theoretically-important phenomenon and 2) examining methodological, situational, cultural, and developmental moderators. We focus on infants’ preference for infant-directed speech (IDS) over adult-directed speech (ADS). Stimuli of mothers speaking to their infants and to an adult were created using semi-naturalistic laboratory-based audio recordings in North American English. Infants’ relative preference for96 IDS and ADS was assessed across 67 laboratories in North America, Europe, Australia, and Asia using the three commonly-used infant discrimination methods (head-turn preference, central fixation, and eye tracking). The overall meta-analytic effect size (Cohen’s d) was 0.35 [0.29 - 0.42], which was reliably above zero but smaller than the meta-analytic mean computed from previous literature (0.67). The IDS preference was significantly stronger in older children, in those children for whom the stimuli matched their native language and dialect, and in data from labs using the head-turn preference procedure. Together these findings replicate the infant-directed speech preference but suggest that its magnitude is modulated by development, native language experience, and testing procedure

AB - The field of psychology has become increasingly concerned with issues related to methodology and replicability. Infancy researchers face specific challenges related to replicability: high-powered studies are difficult to conduct, testing conditions vary across labs, and different labs have access to different infant populations, amongst other factors. Addressing these concerns, we report on a large-scale, multi-site study aimed at 1) assessing the overall replicability of a single theoretically-important phenomenon and 2) examining methodological, situational, cultural, and developmental moderators. We focus on infants’ preference for infant-directed speech (IDS) over adult-directed speech (ADS). Stimuli of mothers speaking to their infants and to an adult were created using semi-naturalistic laboratory-based audio recordings in North American English. Infants’ relative preference for96 IDS and ADS was assessed across 67 laboratories in North America, Europe, Australia, and Asia using the three commonly-used infant discrimination methods (head-turn preference, central fixation, and eye tracking). The overall meta-analytic effect size (Cohen’s d) was 0.35 [0.29 - 0.42], which was reliably above zero but smaller than the meta-analytic mean computed from previous literature (0.67). The IDS preference was significantly stronger in older children, in those children for whom the stimuli matched their native language and dialect, and in data from labs using the head-turn preference procedure. Together these findings replicate the infant-directed speech preference but suggest that its magnitude is modulated by development, native language experience, and testing procedure

KW - language acquisition

KW - speech perception

KW - Infant-directed speech

KW - Reproducibility

KW - experimental methods

U2 - 10.1177/2515245919900809

DO - 10.1177/2515245919900809

M3 - Article

VL - 3

SP - 24

EP - 52

JO - Advances in Methods and Practices in Psychological Science

JF - Advances in Methods and Practices in Psychological Science

SN - 2515-2459

IS - 1

ER -