Flesch-Kincaid Grade Level
The Flesch-Kincaid Grade Level is the more commonly used of the two readability tests that bear the Flesch name.
Although the Flesch Reading Ease Score and the Flesch-Kincaid Grade Level use the same measures, the formulae differ slightly. Further, the results of the two tests can differ. Sometimes, a text that receives a good score on one test will receive a poor score on the other test.
The Flesch-Kincaid Grade Level Formula translates the Flesch Reading Ease Score of 0-100 directly to a U.S. grade level. Thus, a score of 7.1 would indicate that the text is understandable by an average 7th grade student. This makes the readability levels of various texts easier to understand.
The formula for the Flesch Kincaid Grade Level is:
0.39 (av. sentence length) + 11.8 (av. number of syllables per word) - 15.59
0.39 (no. words ÷ no. sentences) + 11.8 (no. syllables ÷ no. words) - 15.59
The page entitled Easy-To-Understand Writing at this website has a score of 7.97.
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