We investigate Korean-speaking children’s knowledge about clause-level constructions involving a transitive event – active transitive and suffixal passive – through corpus analysis and Bayesian modelling. The analysis of Korean caregiver input and children’s production in CHILDES revealed that the rates of constructional patterns produced by the children mirrored those uttered by the caregivers to a considerable degree and that the caregivers’ use of case-marking was skewed towards single form-function pairings (despite the multiple form-function associations that the markers manifest). Based on these characteristics, we modelled a Bayesian learner by employing construction-based input (without considering lexical information). This simulation revealed the dominance of several constructional patterns, occupying most of the input, and their inhibitory effects on the development of the other patterns. Our findings illuminate how children shape clause-level constructional knowledge in Korean, an understudied language for this topic, as a function of input properties and domain-general learning capacities, appealing to the usage-based constructionist approach.

我们通过语料库分析和贝叶斯建模调查了讲韩语的儿童关于涉及及物事件的子句级结构的知识——主动及物和后缀被动。在 CHILDES 中对韩国看护者输入和儿童生产的分析表明，儿童产生的结构模式的比率在很大程度上反映了看护者所说的话，并且看护者对个案标记的使用偏向于单一的形式功能配对（尽管标记表现出多种形式功能关联）。基于这些特征，我们通过使用基于构造的输入（不考虑词汇信息）来建模贝叶斯学习器。这个模拟揭示了几种结构模式的主导地位，占据了大部分输入，以及它们对其他模式发展的抑制作用。我们的研究结果阐明了儿童如何根据输入属性和领域一般学习能力塑造韩语（该主题的一种未被充分研究的语言）的子句级结构知识，吸引基于使用的建构主义方法。