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Evidence record

International Dyslexia Association. 2025 Dyslexia Definition Project; definition adopted 22 October 2025.

A governed Evidence source projected for the exact ND Oracle claims it bears on.

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A source is not a conclusion. Read the exact claim, role, context, limitations and uncertainty together. This record is not a recommendation, diagnosis, legal decision or quality score.

Source record

International Dyslexia Association. 2025 Dyslexia Definition Project; definition adopted 22 October 2025.

Open source

Claims this source bears on

Dyslexia is characterised primarily by persistent difficulty with word reading and/or spelling, involving accuracy, speed or both, and its presentation can vary with the writing system.

Claim reference: dyslexia#dyslexia-claim-core · Confidence: high · Evidence role: Legacy source route — no v0.2 contribution role inferred

Evidence limitations

None recorded.

Claim uncertainty
  • Which commonly reported non-reading difficulties should be treated as core dyslexia features rather than co-occurring or secondary experiences?
  • How should dyslexia be described and assessed across different languages and writing systems?

Dyslexic word-level literacy difficulties occur across a range of cognitive profiles, so general intelligence should not be used as a simple test of whether someone can be dyslexic.

Claim reference: dyslexia#dyslexia-claim-intelligence · Confidence: high · Evidence role: Legacy source route — no v0.2 contribution role inferred

Evidence limitations

None recorded.

Claim uncertainty
  • Which assessment approaches most reliably distinguish dyslexia from other causes of reading difficulty without relying on unsupported IQ-discrepancy rules?

Funding and conflicts

None recorded.

Evidence projection provenance

Evidence synthesis accepted by the owner on 2026-08-12 and promoted from frozen Batch A candidate blob 6609a1a100919003b541e22559f51031ca202031; candidate history remains preserved.

Public projection ID: legacy-dyslexia-dyslexia-source-ida-2025