Automated readability index: Difference between revisions

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applying WP:MOS in regard to hyphenation: —> "17-year-old" [1 instance]—WP:MOS#Numbers (point 1)—WP:HYPHEN, sub-subsection 3, points 3 and 8
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where ''characters'' is the number of letters, numbers, and punctuation marksnumbers, ''words'' is the number of spaces, and ''sentences'' is the number of sentences. Sentences were counted by hand as each text was typed.
 
As a rough guide, US grade level 1 corresponds to ages 6–8. Reading level grade 8 corresponds to the typical reading level of a 14-year-old US child. Grade 12, the highest US secondary-school grade before college, corresponds to the reading level of a 17-year-old.