The gap between Spanish speakers' word reading and word knowledge: a longitudinal study

Area of Science:

• Developmental Psychology
• Bilingual Education
• Linguistic Development

Background:

• Spanish-speaking children from low-income households often face educational disparities.
• Early language and literacy skills are crucial for academic success.
• Understanding growth trajectories in bilingual populations is essential for effective interventions.

Purpose of the Study:

• To model the longitudinal growth rates of English and Spanish oral language and word reading skills.
• To compare the development of these skills with national norms in a cohort of 173 Spanish-speaking children.
• To identify specific areas requiring targeted support for language development.

Main Methods:

• Longitudinal study design tracking participants from ages 4.5 to 11.
• Individual growth modeling applied to standardized measures.
• Assessment of word reading, expressive vocabulary, and verbal short-term language memory.

Main Results:

• Word reading ability and growth rates were comparable to national averages.
• Oral language skills began below national norms and, despite faster growth, did not reach age-appropriate levels.
• Significant disparities persist in oral language development compared to word reading skills.

Conclusions:

• While word reading skills are developing adequately, oral language development requires focused intervention.
• Sustained and increased attention to promoting oral language skills is critical for this population.
• Early language interventions are vital to close the gap and ensure equitable academic outcomes.