Dynamic relationships between text reading fluency and reading comprehension in Chinese children

Reading comprehension and text reading fluency are crucial indicators of overall reading competence. While text reading fluency impacts comprehension, and vice-versa, the precise nature and directionality of this relationship have been debated. Previous research on alphabetic languages has yielded mixed findings, and there's a need to understand this dynamic in the Chinese language, which has unique orthographic features. This study aims to investigate the evolving relationship between text reading fluency and reading comprehension across different developmental stages in Chinese children.

The study involved 416 elementary school students from grades 2, 4, and 6 in China. Assessments were conducted twice over a 6-month interval. A cross-lagged panel model was used to analyze the dynamic relationship, while controlling for non-verbal intelligence, decoding, vocabulary knowledge, and word-reading fluency. This meticulous control aims to isolate the specific interaction between text reading fluency and reading comprehension.

The results revealed a dynamic relationship. In grade 2, the longitudinal effects between text reading fluency and reading comprehension were not statistically significant, suggesting they might develop in parallel. For 4th-grade children, text reading fluency significantly predicted reading comprehension in the subsequent semester. Conversely, among 6th-grade children, reading comprehension in the first semester significantly predicted text reading fluency in the following semester. These findings suggest that the nature of their relationship shifts as children progress through their reading development.

The study confirms that the relationship between text reading fluency and reading comprehension is dynamic and varies with grade level. In earlier grades, fluency appears to support comprehension, while in later grades, comprehension begins to predict fluency. This dynamic is consistent with reading development stages where younger children focus on decoding and fluency, and older children leverage comprehension to enhance reading efficiency. The study highlights the importance of tailoring reading interventions based on a child's developmental stage. Potential limitations include the number of observed variables per model, which might affect the validity of using latent variable extraction.

This longitudinal study in Chinese children demonstrates that the interplay between text reading fluency and reading comprehension is not static but evolves significantly across different developmental stages. While there's no significant cross-lagged relationship in grade 2, text reading fluency predicts comprehension in grade 4, and reading comprehension predicts fluency in grade 6. These insights are valuable for designing targeted reading instruction and interventions in Chinese educational contexts.