Learning with sublexical information from emerging reading vocabularies in exceptionally early and normal reading...

Area of Science:

• Cognitive Psychology
• Developmental Psychology
• Education

Background:

• Theories of word reading acquisition typically assume prerequisite phonological skills.
• Few studies have investigated exceptionally early readers to test these assumptions.
• Existing theories by Ehri, Share, and Byrne contrast with the Knowledge Sources theory.

Purpose of the Study:

• To test predictions from prominent reading acquisition theories using data from exceptionally early readers.
• To compare the reading processes of early readers with under-developed phonological skills against normal readers.
• To evaluate the explanatory power of different theories in accounting for early reading development.

Main Methods:

• Two independent samples of young children (3-5 years) with advanced word reading levels were studied.
• Phonological recoding, pseudoword reading, and vocabulary knowledge were assessed.
• Comparison with age-matched normal readers and readers matched on word reading level was conducted.

Main Results:

• Exceptionally early readers demonstrated under-developed phoneme awareness relative to their reading levels.
• Despite this, they successfully engaged in phonological recoding for pseudoword reading, matching older controls.
• These readers showed a bias towards using vocabulary sublexical information and superior meaning access independent of phonology.

Conclusions:

• The findings challenge theories requiring full phoneme awareness for early word reading acquisition.
• The Knowledge Sources theory provides a better account of how exceptionally early readers learn.
• Early readers can leverage vocabulary knowledge for decoding, suggesting alternative pathways to reading proficiency.