Democrats far better than Republicans at grammar

[ErikJ]

I wonder how many mistakes McCarthy or Bush make per 100 words.

http://www.sfgate.com/politics/article/Democrats-far-better-than-Republicans-at-grammar-6554179.php

A new study analyzing the grammar of comments posted on presidential candidate Facebook pages finds that Republicans tend to butcher the English language at twice the rate of Democrats.

The study by the grammar-checking app Grammarly found that GOP supporters made an average of 8.7 mistakes per 100 words compared to 4.2 mistakes for Democratic supporters.

The Dems also had the bigger vocabulary, with 300 unique words used on average compared to 245 for Republicans.

Broken down by candidate, the trend becomes even more pronounced.
The five Democratic candidates — Lincoln Chafee, Jim Webb, Bernie Sanders, Martin O'Malley and Hillary Clinton — all scored higher (in that order) than every Republican except Carly Fiorina.

For the purposes of this study, we counted only black-and-white mistakes such as misspellings, wrong and missing punctuation, misused or missing words, and subject-verb disagreement. We ignored stylistic variations such as the use of common slang words, serial comma usage, and the use of numerals instead of spelled-out numbers.
..........................................

mistakes per 100 words.

Lincoln Chaffee, Democrat, 3.1
Jim Webb, Democrat, 3.4
Bernie Sanders, Democrat, 3.7
Martin O'Malley, Democrat, 4.6
Hillary Clinton, Democrat, 6.3
Carly Fiorina, Republican, 6.3
Ben Carson, Republican, 6.6
Lindsey Graham, Republican, 7.2
George Pataki, Republican, 7.2
Ted Cruz, Republican, 7.3
John Kasich, Republican, 7.7
Jeb Bush, Republican, 7.9
Mike Huckabee, Republican, 8.0
Bobby Jindal, Republican, 8.2
Chris Christie, Republican, 8.3
Rand Paul, Republican, 8.4
Marco Rubio, Republican, 8.8
Rick Santorum, Republican, 11.5
Donald Trump, Republican, 12.6

[Make7]

1. Trump supporters be dumb. Whoda thunk? ( n/t )

[CrispyQ]

2. We need to make smart cool again. -nt

[merrily]

3. They're simply more language-creative, while Democrats are more language-rigid.

[whatthehey]

4. To avoid confirmation bias we should ask...

Was this analysis confined only to supporters or did it include critics? After a brief desultory foray into FB several years ago I have never returned, but unless much has changed, public figures attract both positive and negative comments.

The conclusion may seem satisfying, but is the methodology sound?