4.3 Article

Effects of semantic plausibility, syntactic complexity and n-gram frequency on children's sentence repetition

Journal

JOURNAL OF CHILD LANGUAGE
Volume 48, Issue 2, Pages 261-284

Publisher

CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0305000920000306

Keywords

sentence repetition; n-grams; semantics; syntax

Funding

  1. ESRC [ES/N01703X/2, ES/S007113/1] Funding Source: UKRI

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The study found that semantic plausibility and syntactic complexity had different effects on children's sentence processing performance in a sentence repetition task, while n-gram frequency did not have a significant impact in contrast to previous findings.
Theories of language processing differ with respect to the role of abstract syntax and semantics vs surface-level lexical co-occurrence (n-gram) frequency. The contribution of each of these factors has been demonstrated in previous studies of children and adults, but none have investigated them jointly. This study evaluated the role of all three factors in a sentence repetition task performed by children aged 4-7 and 11-12 years. It was found that semantic plausibility benefitted performance in both age groups; syntactic complexity disadvantaged the younger group but benefitted the older group; while contrary to previous findings, n-gram frequency did not facilitate, and in a post-hoc analysis even hampered, performance. This new evidence suggests that n-gram frequency effects might be restricted to the highly constrained and frequent n-grams used in previous investigations, and that semantics and morphosyntax play a more powerful role than n-gram frequency, supporting the role of abstract linguistic knowledge in children's sentence processing.

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