BASIC
RECIPES

Capsule: FOG INDEX


A method to calculate the readability of a text is offered in the manual "Effective Writing", produced by Arthur Andersen and Co., Illinois, USA.

Text Fog Index =
average words per sentence + percent of long words X 4


GRADE SCALE


- 6 to 9 = easy

- 10 to 12 = safe reading

- 13 to 17 = difficult

    INDEX EXAMPLES:

  • Hemingway = 8 - 10
  • Faulkner = 12
  • New York Times = 11
  • Chicago Tribune = 10
  • Edgar Allan Poe = 12
  • Newsweek = 11
  • Time = 10


CHECK YOUR READABILITY

Apply the FOG INDEX to sample texts - letters and messages - that you have received or written!

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