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Incidental Acquisition of Domain-Specific Vocabulary in Student-Centered and Teacher-Led Discussions

Sat, April 13, 3:05 to 4:35pm, Pennsylvania Convention Center, Floor: Level 200, Exhibit Hall B

Abstract

The study investigated factors contributing to incidental learning of domain-specific vocabulary (DSV) in the context of teacher-centered and student-centered discussions. A total of 284 fifth graders came crossed 60 domain-specific vocabulary (DSV) words during recurrent discussion. A Bayesian logistic regression with crossed random effects found no difference in DSV use in the essay between the student-centered and teacher-led groups. Students were much more likely to produce DSV in the essay if they actively used the words or heard peers use them in discussion. The potency of self-use and peer modeling further reduced the effect of word familiarity on DSV use in the essay. The evidence supports the benefit of discussion to promote incidental vocabulary learning.

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