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Related Concept Videos

Language Development01:22

Language Development

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...
Components of Language01:24

Components of Language

Language, whether spoken, signed, or written, consists of specific components: lexicon and grammar. The lexicon is the vocabulary of a language, comprising its words. Grammar is the set of rules used to convey meaning through the lexicon. For example, English grammar adds “-ed” to most verbs to indicate past tense. Words are formed by combining phonemes, which are the basic sound units of a language. Different languages have different sets of phonemes (e.g., “ah” vs. “eh”). Phonemes combine to...

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Related Experiment Video

Updated: Jun 4, 2026

Transcranial Direct Current Stimulation (tDCS) of Wernicke's and Broca's Areas in Studies of Language Learning and Word Acquisition
12:49

Transcranial Direct Current Stimulation (tDCS) of Wernicke's and Broca's Areas in Studies of Language Learning and Word Acquisition

Published on: July 13, 2019

Measuring Children's Early Vocabulary in Low-Resource Languages Using a Swadesh-Style Word List.

George Kachergis1, Alvin Wei Ming Tan1, Virginia A Marchman1

  • 1Department of Psychology, Stanford University.

Cognitive Science
|June 2, 2026
PubMed
Summary

Researchers developed a method to create new language development tools by identifying core concepts common across many languages. This helps expand early language skill assessments to more diverse linguistic communities worldwide.

Keywords:
Communicative Development InventoryCross‐linguistic analysesLanguage acquisitionPsychometricsVocabulary

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Advancing Dyslexia Assessment in Children Through Computerized Testing
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Last Updated: Jun 4, 2026

Transcranial Direct Current Stimulation (tDCS) of Wernicke's and Broca's Areas in Studies of Language Learning and Word Acquisition
12:49

Transcranial Direct Current Stimulation (tDCS) of Wernicke's and Broca's Areas in Studies of Language Learning and Word Acquisition

Published on: July 13, 2019

Advancing Dyslexia Assessment in Children Through Computerized Testing
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Advancing Dyslexia Assessment in Children Through Computerized Testing

Published on: August 16, 2024

Area of Science:

  • Developmental Psychology
  • Linguistics
  • Psychometrics

Background:

  • Early language skill is a key predictor of later life outcomes, making its assessment crucial for developmental psychologists and clinicians.
  • The MacArthur-Bates Communicative Development Inventories (CDIs) are validated tools for measuring early language skills, adapted into numerous languages.
  • A significant barrier exists in adapting CDIs for thousands of languages due to the lack of necessary early language corpora.

Purpose of the Study:

  • To propose a novel method for selecting candidate words for new CDIs.
  • To identify a core list of concepts with consistent cross-linguistic learning difficulty.
  • To facilitate the creation of CDIs for underrepresented languages.

Main Methods:

  • Analyzed psychometric properties of translation-equivalent concepts across existing CDIs.
  • Leveraged 32 datasets from established CDIs.
  • Identified 100 concepts with low cross-linguistic learning difficulty variability.

Main Results:

  • Proposed a list of 100 core concepts for new CDI development, analogous to Swadesh lists.
  • Demonstrated low variability in cross-linguistic learning difficulty for the selected concepts.
  • Validated the generalizability of the proposed Swadesh-CDI list across 10 additional languages.

Conclusions:

  • The proposed method and concept list provide a foundation for adapting CDIs to new languages.
  • This approach can significantly increase the diversity of languages studied in early language acquisition research.
  • Facilitates cross-linguistic comparisons and enhances understanding of language development trajectories globally.