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Related Experiment Videos

Phonological process decline from 2 1/2 to 8 years.

J E Roberts1, M Burchinal, M M Footo

  • 1Frank Porter Graham Child Development Center, University of North Carolina, Chapel Hill.

Journal of Communication Disorders
|June 1, 1990
PubMed
Summary
This summary is machine-generated.

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Children

Area of Science:

  • Child language acquisition
  • Speech-language pathology

Background:

  • Phonological development is crucial for early communication.
  • Understanding typical phonological processes aids in identifying developmental delays.

Purpose of the Study:

  • To examine phonological development in children aged 2.5 to 8 years.
  • To analyze the usage of common and uncommon phonological processes over time.
  • To identify potential demographic influences on phonological development.

Main Methods:

  • Longitudinal study of 145 children from 2.5 to 8 years.
  • Annual speech assessment using a standardized articulation test.
  • Analysis of phonological process occurrence and frequency.

Main Results:

Related Experiment Videos

  • Significant decline in phonological process usage between 2.5 and 4 years.
  • Infrequent use of uncommon processes, even in younger children.
  • No significant sex differences observed; race differences noted for isolated processes.

Conclusions:

  • Most children resolve common phonological processes by age 4.
  • Uncommon processes are rare and persist less frequently.
  • Phonological development shows typical patterns, with some race-related variations in specific processes.