Related Experiment Video
Updated: Sep 10, 2025

Decomposing the Variance in Reading Comprehension to Reveal the Unique and Common Effects of Language and Decoding
Published on: October 11, 2018
Variability in Language and Literacy Outcomes Among Deaf Elementary Students in a National Sample
Kimberly Wolbers1, Hannah Dostal2, Kelsey Spurgin3
1Theory and Practice in Teacher Education, University of Tennessee, Knoxville, TN 37996, USA.
None:
This study examined the literacy outcomes of 368 deaf elementary students in the United States, focusing on reading and writing performance and their connections with demographic and language variables. Standardized assessment data were analyzed from students in grades 3-6. Results indicated wide variability in reading and writing performance, from scores at a standard deviation above the mean to more than 3 below the mean. There were demonstrated disparities in mean literacy outcomes based on disability status. A strong positive correlation was found between reading and writing scores, suggesting interconnected development of literacy skills. Notably, writing outcomes were consistently higher than reading across analyses. Performance trajectories differed by grade, with literacy gaps widening over time. Gender, race, and hearing level explained 2-3% of the variance in literacy outcomes, while language proficiency (in ASL and/or spoken English) and phonological knowledge (fingerspelled and/or spoken) predicated 55-63% of the models. These findings highlight the need for early accessible language exposure and responsive literacy instruction aligned with deaf learners' language strengths.
Related Concept Videos
Language and Cognition
Learning Disabilities
Dyslexia
Dyslexia is a...
Language Development
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
Components of Language
Variability: Analysis
The range is a simple measure of variability, indicating the difference between the highest and...
Barriers to Effective Communication II
Cultural barriers:
Differences in values, beliefs, religion, knowledge, and tradition can significantly impact communication. Awareness of nonverbal cues is critical, especially when conversing with a patient from a different culture. What appears appropriate in one culture may be inappropriate in another.
Semantic barriers:
As a result of their tendency to use...

