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8 de dic. de 2015 · Multiply the total from step four by 0.4. The number you get is the Fog Index. It tells you approximately how many years of school a person would need to have had in order to process your writing easily. If the total is, say 10.4, we're talking about a tenth-grade reading level.
Gunning Fog Index . This is a tool that tries to calculate the Gunning Fog Index. It is a weighted average of the number of words per sentence, and the number of long words per word. An interpretation is that the text can be understood by someone who left full-time education at a later age than the index.
The principle behind the Gunning Fog Index formula is that short sentences written in plain English receive a better score than longer sentences written in complex language. A Gunning Fox Index score of 7 or 8 is ideal, and anything higher than 12 is too complex for most people to read. Popular magazines, such as TIME and the Wall Street ...
迷雾指数（The Gunning FOG Index），是由美国教授 Robert Gunning 于1952年提出的指数。该指数可从词数、难度、完整思维的数量和平均句长等方面考察一篇文章的阅读难度。
Gunning’s FOG Index highlights the number of words and syllables present in a text. It is best to get a sample passage of at least 100 words for this test. Using the Gunning FOG formula, you can directly estimate the number of years of formal education a person needs to understand the text. That means, if your text scored a 6 in the Gunning ...
Eleven hard words divided by 87 total words and multiplied by 100 gets us the percentage of hard words, which is equal to 13. Finally, summing up 13 and 87, we obtain a fog index of 100. That is much higher than the numbers mentioned above. Here is a revised version of the text passage, which is much shorter and easier to read.
Gunning's 'Fog Index' combines a word-length test and a sentence-length test, to assess the minimum age and educational level for which a text is suitable. This is the formula: Select a typical example of about 100 words. Count the number of words. Divide the number of words by the number of sentences. This gives you the average sentence-length.
