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Relations of Social Maturity, Executive Function, and Self-Efficacy Among Deaf University Students.

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Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
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Word and world knowledge among deaf learners with and without cochlear implants.

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  • 1National Technical Institute for the Deaf, Rochester Institute of Technology.

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Deaf college students, with or without cochlear implants (CIs), showed similar word and world knowledge gaps compared to hearing peers. Early CI implantation did not significantly improve long-term knowledge acquisition.

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Area of Science:

  • Audiology
  • Developmental Psychology
  • Linguistics

Background:

  • Deaf learners often exhibit deficits in vocabulary and world knowledge compared to hearing peers.
  • These knowledge gaps are frequently attributed to limited incidental learning opportunities due to lack of auditory access.
  • Cochlear implants (CIs) are hypothesized to improve incidental learning and potentially close these knowledge gaps.

Purpose of the Study:

  • To evaluate if cochlear implants (CIs) enable deaf college students to achieve comparable word and world knowledge to hearing individuals.
  • To investigate the long-term impact of CIs on knowledge acquisition in deaf learners.
  • To determine if the age of CI implantation influences long-term knowledge outcomes.

Main Methods:

  • Assessed word and world knowledge in deaf college students with and without CIs, and a hearing comparison group.
  • Conducted separate analyses on a subset of CI users who received implants at a young age.
  • Examined the relationship between age of implantation and performance on knowledge tasks.

Main Results:

  • Hearing students outperformed both deaf groups (with and without CIs) across nearly all knowledge tasks.
  • No significant differences in knowledge were found between deaf students with and without CIs.
  • Early CI implantation did not confer long-term advantages, nor was age of implantation correlated with enhanced performance.

Conclusions:

  • Cochlear implants do not appear to fully bridge the word and world knowledge gap for deaf learners by college age.
  • Incidental learning remains a significant factor, and auditory access via CIs may not fully compensate for early language and knowledge acquisition differences.
  • Further research is needed to understand the long-term effects of CIs and alternative strategies for improving knowledge acquisition in deaf individuals.