Readability formulas recap

readability-formulas.md

Taken from

Perusal of readability with focus on web content understandability

Pawan Kumar Ojha, Abid Ismail, Kuppusamy Kundumani Srinivasan, Journal of King Saud University - Computer and Information Sciences, Volume 33, Issue 1, 2021, Pages 1-10, ISSN 1319-1578,

DOI: https://doi.org/10.1016/j.jksuci.2018.03.007

Attributes	FRE	Dale-Chall readability	FKGL	Gunning Fog Index	SMOG	ARI	FRY	Forcast	PSK	SPACHE	CLI	BRI	LI×	Raygor Estimate Graph	Djoko Formula	New Fog Count	Pisarek’s Index	Fernandez Huerta Index	Kandal and Moles Index	Al-Heeti Grade Level	Lexile
Sentence	✓	✓	✓	✓	×	✓	✓	×	✓	✓	✓	×	×	✓	✓	✓	✓	✓	✓	✓	✓
Syllables	✓	×	✓	×	×	×	✓	×	✓	×	×	×	×	×	×	×	×	✓	✓	✓	×
Words	✓	✓	✓	✓	×	✓	×	×	✓	×	✓	×	✓	✓	✓	×	✓	✓	✓	✓	✓
Unfamiliar Words	×	✓	×	×	×	×	×	×	×	✓	×	×	×	×	×	×	×	×	×	×	×
Number of polysyllables word count	×	×	×	×	✓	×	×	×	×	×	×	×	×	×	×	×	×	×	×	×	×
Complex words	×	×	×	✓	×	×	×	×	×	×	×	×	×	×	×	✓	✓	×	×	×	×
Character count	×	×	×	×	×	✓	×	×	×	×	✓	✓	×	✓	×	×	×	×	×	×	×
Number of periods	×	×	×	×	×	×	×	×	×	×	×	×	✓	×	×	×	×	×	×	×	×
Familiar words	×	×	×	×	×	×	×	×	×	×	×	✓	×	×	×	×	×	×	×	×	×
Number of sentences, number of syllables from three 100 word paragraph	×	×	×	×	×	×	✓	×	×	×	×	×	×	×	×	×	×	×	×	×	×
Single syllable words	×	×	×	×	×	×	×	✓	×	×	×	×	×	×	×	×	×	×	×	×	×
Average number of sentences and letters per100 words	×	×	×	×	×	×	×	×	×	×	×	×	×	✓	×	×	×	×	×	×	×
Word frequency	×	×	×	×	×	×	×	×	×	×	×	×	×	×	×	×	×	×	×	×	✓
Easy words	×	×	×	×	×	×	×	×	×	×	×	×	×	×	×	✓	×	×	×	×	×
Paragraph	×	×	×	×	×	×	✓	×	×	×	×	×	×	×	✓	×	×	×	×	×	×