Specific predictors of length and frequency effects in German beginning readers: testing component processes of sublexical and lexical reading in the DRC

AbstractReading a word requires several component processes. The dual route cascaded (DRC) model provides a characterization of these component processes and their involvement in different reading routes. We tested how relevant precursor skills associated with these component processes predict the use of the sublexical and lexical route in beginning readers of a transparent orthography. More than 100 German first graders performed a battery of tasks tapping into precursor skills associated with the DRC components. Using factor analysis, we first verified that the tasks can be attributed to three sets of skills, capturing visual, sublexical, and lexico-semantic components, as the DRC suggests. We then used these sets of skills to predict differences in the reliance on sublexical and lexical reading in second grade as indicated by length and frequency effects. Results show that the set of sublexical skills in first grade especially predicts differences in the recognition of long frequent words at the end of second grade, whereas the set of lexico-semantic skills predicts differences in the reading of long infrequent words. The findings corroborate the attribution of specific precursor skills to the sublexical and lexical route and reveal their distinct impact on sublexical and lexical reading in beginning readers. The work thus empirically informs the developmental version of the DRC, especially regarding variability in trajectories of reading acquisition.

Source: Reading and Writing - February 3, 2022 Category: Child Development Source Type: research