Kindergarten predictors of second versus eighth grade reading comprehension impairments

Area of Science:

• Developmental Psychology
• Educational Psychology
• Linguistics

Background:

• Kindergarten phonological awareness and alphabet knowledge predict early reading achievement.
• Predictors of later reading comprehension, especially in later grades, are less understood.
• Longitudinal studies are crucial for understanding developmental trajectories in reading.

Purpose of the Study:

• To identify kindergarten predictors of reading comprehension impairments in both early (second grade) and later (eighth grade) stages.
• To examine how the predictive power of early skills changes over time for reading comprehension.
• To inform early identification strategies for reading disabilities.

Main Methods:

• Utilized a modified best-subsets variable-selection technique.
• Analyzed data from 433 children in a longitudinal language and reading development study.
• Assessed kindergarten skills including phonological awareness, alphabet knowledge, naming speed, nonverbal cognitive ability, and language skills; reading comprehension was measured in second and eighth grades.

Main Results:

• Different combinations of kindergarten variables optimally predicted reading comprehension impairments in second versus eighth grade.
• Some predictors were effective for both time points, but their relative importance shifted.
• The predictive models for early and later reading comprehension differed significantly.

Conclusions:

• The nature of reading comprehension and its predictors evolves from early to later grades.
• Early identification of later reading disabilities requires considering the changing role of foundational skills.
• Further research is needed to refine early identification methods for diverse reading challenges.