Previous research on the L1 acquisition of motion event expression suggests that mapping multiple semantic components onto syntactic units is associated with greater difficulties in verb-framed than in satellite-framed languages, because the former require more complex structures (using subordination). This study investigated the impact of this language-specific difference in English–French bilingual children’s caused motion expressions. 2L1 children (n = 96) between 4 and 10 years and monolingual English and French children (n = 96) described video animations portraying caused motion events involving multiple semantic components. Results revealed reduced rates of subordinate constructions in bilinguals’ French descriptions, and more so in older than younger children, while English responses aligned with monolinguals. Semantic density of responses strongly predicted syntactic complexity, but exclusively in French. These asymmetric findings indicate a task-specific syntactic relief strategy and are discussed in the context of theoretical claims about universal biases of event encoding and bilingual-specific optimisation strategies.

The study compared the syntactic complexity and the use of logical connectors in summaries written in French by two groups of students: speakers of French as first language (L1) and peers in a French-immersion program (L2) from grade nine to university. Both L1 and L2 groups of university students demonstrated more general complexity in their written summaries than less mature writers. However, the use of phrasal elaboration was apparent just at the upper secondary and university levels with L1 students. Both groups generally tend to overuse causal connectors while underusing additive and adversative connectors compared to the author’s use in the source text. Yet both groups employ significantly more adversative connectors just at the post-secondary level. The only difference observed between L1 and L2 writers was in the diversity of connector words used in the summary, with the former group using a richer, more diverse vocabulary. Several measures for succinctness differentiated L1 and L2 students in early secondary with the latter group condensing the source text less than L1 students. Correlation analysis suggested that many measures of syntactic complexity and connector use are inextricably linked.

Teachers’ language practice during shared book reading may significantly affect the rate and outcome of early language proficiency. The current study has focused on 37 kindergarten teachers and 440 4- to 5-year-old kindergartners during their shared book reading sessions in Singapore, exploring teachers’ variation in instructional strategies and linguistic features, and its relations with children’s language development and teacher’s background. Results demonstrated that teacher’s language strategies and linguistic features varied considerably. Instructional strategies with a medium level of cognitive load were found to be positively related to children’s growth in receptive vocabulary and word reading skills. Teacher’s lexical sophistication was found to be positively associated with children’s vocabulary size. Years of teaching experience was revealed to predict teacher’s variation in medium-level instructions.

This paper critically examines the exclusive use of the relative frequency of subordinate clauses as a measure of syntactic complexity in Second Language Acquisition (SLA) L2 acquisition and as an indicator of Second Language (L2) development. Following Lambert & Kormos (2014), it is argued that it is important to also take into account: (i) different subordinate clause types, (ii) item-based frequencies, and (iii) text genre. Longitudinal written data was collected among 21 Dutch-speaking foreign language learners of Swedish. Based on these data, the study shows that the subordination ratio (a common measure for syntactic complexity) alone was found to be insufficient as an indicator of syntactic complexity and L2 development, as hardly any significant differences were observed in the subordination ratios of the learners and native speakers. The study shows that other aspects are also relevant in determining the learners’ level of syntactic complexity as well as their L2 development, such as the internal structure and context of subordinate clauses, subordinate clause types, and especially the type-token ratio of subordinators used. The results showed a significant negative correlation between the subordination ratio of texts and the type-token ratio of subordinators. The aim of the study is to acknowledge the variation in the learners’ use of subordinate clause, in addition to the general subordination ratio, in order to arrive at a more nuanced view of syntactic complexity in second language acquisition.

We display a complexity notion based on the syntax of a tree series which yields two distinct hierarchies, one within the class of recognizable tree series and another one in the class of non-recognizable tree series.