Editing Flesch–Kincaid readability tests (section)

{{short description|Indicator for the complexity of texts}}
{{Use mdy dates|date=June 2015}}
[[File:Flesch_Kincaid_readability_tests.svg|thumb|400px|Graphs of Flesch-Kincaid reading ease (red) and grade level (gray) scores against average syllables per word and average words per sentence]]
The '''Flesch–Kincaid readability tests''' are [[readability test]]s designed to indicate how difficult a passage in [[English language|English]] is to understand. There are two tests: the Flesch Reading-Ease, and the Flesch–Kincaid Grade Level. Although they use the same core measures (word length and sentence length), they have different weighting factors.

The results of the two tests correlate approximately inversely: a text with a comparatively high score on the Reading Ease test should have a lower score on the Grade-Level test. [[Rudolf Flesch]] devised the Reading Ease evaluation; somewhat later, he and [[J. Peter Kincaid]] developed the Grade Level evaluation for the [[United States Navy]].