Dyslexia: What Does It Mean?
The International Dyslexia Association updated its definition in 2025 for the first time in more than 20 years. Literacy experts Mary Kate DeSantis and Eileen Catizone explain what changed and what it means for the students you serve.
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In 2025 the International Dyslexia Association updated its definition of dyslexia for the first time in more than 20 years, including a shift to describing dyslexia as a continuum. In this session from Reaching Every Learner, Parallel's fall series with Sprout Labs, Mary Kate DeSantis and Eileen Catizone walk through the new definition, the observable signs of risk and how SLPs can respond.
Key takeaways
- What's new in the IDA definition and why early oral language matters
- Observable signs of dyslexia risk from toddlerhood through the school years
- How to spot skill gaps in real time using reading clips and a writing sample
- Where dyslexia and Developmental Language Disorder overlap








