Fluid reasoning and working memory among children with reading disorder: Processing speed as a mediator
1Prof.Dr. Special Education Department, Faculty of Education, Umm Al Qura University, Mekkah, Saudi Arabia.
Applied Neuropsychology. Child
|December 21, 2025
Summary
Processing speed does not mediate the link between working memory and fluid reasoning in children with dyslexia. While working memory and fluid reasoning are related, processing speed
Area of Science:
- Cognitive Psychology
- Developmental Psychology
- Neuroscience
Background:
- Reading disorders, such as dyslexia, are associated with cognitive challenges.
- Understanding the interplay between working memory, processing speed, and fluid reasoning is crucial for dyslexia research.
Purpose of the Study:
- To examine the mediating role of processing speed in the relationship between working memory and fluid reasoning.
- To investigate cognitive mechanisms underlying reading disorders in children.
Main Methods:
- Descriptive-correlational study involving 300 students diagnosed with dyslexia.
- Convenience sampling from inclusive schools in Mecca.
- Utilized Wechsler Intelligence Scale and Arabic Stanford-Binet Intelligence Scale for data collection.
Main Results:
- A significant relationship was found between working memory and fluid reasoning.
- Processing speed and working memory together accounted for 52% of the variance in fluid reasoning.
- The mediating role of processing speed was not confirmed in this relationship.
Conclusions:
- The mediating effect of processing speed between working memory and fluid reasoning in children with dyslexia was rejected.
- Cognitive factors beyond processing speed and working memory may significantly influence fluid reasoning in this population.
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