Age-related differences in the expression of causal relationships during narrative production of Croatian children

A successful narration relies on the ability of an individual to express a coherent sequence of temporally and causally related events organised around a specific theme, and this skill typically develops in early preschool age. Narrative coherence can be assessed by sequences or elements of story grammar. According to the causal network model, story grammar is viewed as an interconnected network of causal relationships, including enabling, physical, motivational, and psychological relationships. The importance of causal coherence has been recognised in many studies dealing with narrative discourse from the developmental perspective. However, previous studies have reported inconsistent results with respect to the use of different types of causal relationships in the narratives of children of different ages. In the present study, we aimed to examine the differences between preschool and school children in their ability to express causal relationships, both overall and specific, in the narratives that they produce. Participants were monolingual Croatian-speaking children with typical language development, who were stratified into two groups: preschool (n = 41, mean age = 6;3 years) and school children (n = 50, mean age = 8;4 years). Narratives were collected using the Multilingual Assessment Instrument for Narratives (MAIN), which was adapted to Croatian. The results show significant differences between the two groups of children in the overall proportion of causal relationships expressed, as well as specifically in the proportion of motivational relationships. There were no significant differences between the groups in production of enabling, physical, or psychological relationships. School children expressed more causal relationships overall than preschool children, as well as specifically more motivational relationships. As far as we know, this study is the first to investigate causality in the narratives of monolingual Croatian-speaking children using the causal network model. Our results only partially confirm the findings of previous studies, suggesting the need for further research to better understand the development of causal coherence in children’s narrative discourse.