Incrementality in English as second language oral sentence production
Two experiments using sentence completion tasks were conducted to investigate incremental planning strategies during the structural building phase of L2 sentence production among Chinese English learners.The findings show that sentence structure type and language proficiency levels significantly influenced incrementality in sentence production.While high-proficiency learners exhibited variable incrementality strategies tailored to specific sentence structures,adopting a linear approach for projective phrases and a hierarchical approach for relative clause sentences,low-proficiency learners consistently demonstrated linear incrementality across sentence types.Furthermore,the hierarchical incrementality observed in high-proficiency learners was driven primarily by clause package effects rather than syntactic distance effects.These results underscore that incrementaltiy in L2 sentence production not only differs from that of native speakers but is also intricately influenced by learners'language proficiency.