The Fog Index
Posted on Monday, May 30, 2016 at 9:45 PM
Assessing the readability of a TechCrunch.com excerpt.
This
month, we're calculating the Fog Index of a paragraph from a May 29
TechCrunch.com piece ("Robots
Add Real Value When Working with Humans, Not Replacing Them" by
Matt Beane). Here's the sample text, with longer words italicized for
reference:
"In many Da Vinci procedures, residents
find themselves on the edges of the playing field. When once they might
get four hours of practice during a traditional operation,
now they get 10-15 minutes during a Da Vinci procedure -- if they
get a chance to participate at all. It's not that the robotics
technology itself [bolded for emphasis, was italicized in
original article] prevents residents from learning; the technology
just makes it iPhone-easy for liability-saddled attending
surgeons to assume complete control. The expert does the work, which is
good for patients in the short run, but the profession itself is
in a new kind of trouble."
--Word count: 97 words
--Average
sentence length: 24 words (15, 32, 25, 25)
--Words with 3+ syllables:
12 percent (12/97 words)
--Fog Index: (24+12)*.4 = 14 (14.4, no
rounding)
This sample divides 97 words into just 4 sentences.
This leaves us with an elevated Fog score 3 points above the recommended
limit. Let's try to get this within range by cutting our average
sentence length:
"In many Da Vinci procedures, residents
end up on the edges of the playing field. When once they might have
gotten four hours of practice during a standard operation, now
they get 10-15 minutes during a Da Vinci procedure. That's if
they get a chance to participate at all. It's not that the robots
themselves prevent residents from learning; the technology
just makes it iPhone-easy for liability-saddled attending
surgeons to assume complete control. The expert does the work. This is
good for patients in the short run, but the profession itself is
in a new kind of trouble."
--Word count: 98 words
--Average
sentence length: 16 words (15, 24, 10, 24, 5, 20)
--Words with 3+
syllables: 9 percent (9/98 words)
--Fog Index: (16+9)*.4 = 10 (10.0,
no rounding)
This may be the first time we've gained a word in
the editing process. (This happened when we changed the verb tense in
the second sentence.) Our other edits did little to change overall word
count, but they did cut sentence length by one third (from 24 to 16). We
could have cut this even further by splitting the new sentence 4 into
two new sentences, but we didn't want the writing to become too
staccato. The decrease in the number of longer words helped offset this
waived opportunity.
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