411 REFERENCE · Wiktionary
Gunning fog index
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Developed in 1952 by Robert Gunning.
Proper noun
1
A readability metric for English writing, estimating how many years of formal education a person needs in order to understand the text on the first reading. It is based on the average sentence length and the proportion of words of three or more syllables.
en eponyms