Why Readability Matters for Accessibility
Readability directly impacts how accessible your content is to users with cognitive disabilities, learning disabilities, and those who are not native speakers of your content's language. Section 508 compliance includes ensuring that content is understandable to the broadest possible audience.
The Web Content Accessibility Guidelines (WCAG) 2.2 includes specific success criteria related to readability:
- 3.1.5 Reading Level AAA: When text requires reading ability more advanced than the lower secondary education level, supplemental content or a version that doesn't require reading ability more advanced than the lower secondary education level is available.
- 3.1.3 Unusual Words AAA: A mechanism is available for identifying specific definitions of words or phrases used in an unusual or restricted way.
- 3.1.4 Abbreviations AAA: A mechanism for identifying the expanded form or meaning of abbreviations is available.
Readability Metrics Reference
The table below provides a comprehensive reference of readability metrics and text analysis features that can help evaluate and improve content accessibility. Use these metrics to assess and enhance the readability of your content.
| Metric Name | Category | Subcategory | Description | Interpretation |
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