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Dale Chall Readability

The Dale Chall readability formula is a readability test that provides a numeric gauge of the comprehension difficulty that readers come upon when reading a text. The mathematical formula uses the parameters of average sentence length and percentage of difficult words as inputs. A word is considered difficult if it does not appear in a revised standardized list of 3000 words that groups of fourth-grade American students could reliably understand.

The AutoCrit Dale Chall Readability report highlights words not found in the Dale Chall List of Simple Words.