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Related Concept Videos

Language Development01:22

Language Development

358
Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
358

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Related Experiment Video

Updated: Jun 27, 2025

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Evidence for Infant-directed Speech Preference Is Consistent Across Large-scale, Multi-site Replication and

Martin Zettersten1, Christopher Cox2, Christina Bergmann3

  • 1Department of Psychology, Princeton University.

Open Mind : Discoveries in Cognitive Science
|April 26, 2024
PubMed
Summary
This summary is machine-generated.

Infants show a preference for infant-directed speech (IDS) over adult-directed speech (ADS). Comparing meta-analyses and multi-lab studies reveals consistent moderate effects, but differences in moderator impacts highlight areas for further research on IDS generalization.

Keywords:
infant-directed speechlooking time preferencemega-analysismeta-analysismulti-lab replication

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Area of Science:

  • Developmental Psychology
  • Linguistics
  • Cognitive Science

Background:

  • Infants consistently prefer infant-directed speech (IDS) over adult-directed speech (ADS).
  • Evidence primarily stems from meta-analyses and multi-lab replication studies.

Purpose of the Study:

  • To compare two large-scale investigations on infant-directed speech preference.
  • To examine the boundary conditions of infant speech preference by analyzing population and design characteristics.
  • To integrate findings from a meta-analysis and a multi-lab replication study.

Main Methods:

  • Combined and compared data from a community-augmented meta-analysis and a large-scale multi-lab replication study.
  • Analyzed key population (infant age, native language) and design (experimental methods) characteristics.
  • Utilized statistical models to assess effect sizes and moderator influences.

Main Results:

  • Both the meta-analysis and multi-lab replication yielded moderate effect sizes (d ≈ 0.35) for IDS preference.
  • The IDS preference remained robust across various experimental methods, infant ages, and native languages in both analyses.
  • Divergent findings emerged regarding moderator effects: infant age and experimental method influenced IDS preference in the multi-lab study but not the meta-analysis.

Conclusions:

  • Infant-directed speech preference is a generalizable phenomenon across diverse conditions.
  • Comparing meta-analyses and multi-lab replications reveals both consensus and discrepancies in understanding developmental phenomena.
  • Further research is needed to clarify the influence of specific moderators on infant speech preference.