What is already known on the subject Previous studies that used cut-point methods on scores from omnibus or domain-specific tests have shown that some children demonstrate improving or declining oral language trajectories throughout their years of school. However, these methods may not fully capture the complexity of language growth and change over time. What this paper adds to the existing knowledge This study offers new evidence on how a multidimensional assessment approach affects the classification and stability of language trajectories from school entry to Year 1. While a multidimensional approach identifies a greater number of children with language difficulties, it also reveals greater stability in language profiles over time, particularly for children with more significant challenges. What are the potential and actual clinical implications of this work? The findings reinforce the need to adopt multidimensional assessment practices in research and clinical settings. Importantly, the high stability of language profiles identified using this method may increase clinician confidence in accurately identifying language difficulties at school entry.
Taylor et al. (2026) studied this question.