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. 2014 Dec 9;10(3):374–380. doi: 10.1007/s11552-014-9718-7

Table 3.

Grade level analysis by readability test

Readability test Mean reading grade level
Coleman-Liau 13
Flesch-Kincaid 12.6
FORCAST 11.6
Fry 14
Gunning Fog 13.9
New Dale-Chall 12.8
New Fog Count 10.8
Raygor Estimate 15
SMOG 13.9
Average 13.1