Using the wrong word isn’t just making you look careless, it’s also affecting your credibility. For an example, take a look at this from Yahoo! Shine:
Using the wrong word isn’t just making you look careless, it’s also affecting your credibility. For an example, take a look at this from Yahoo! Shine:

December 1, 2011 at 12:43 pm
The effect/affect confusion is on every list of common mistakes to avoid. I’m surprised that a professional writer doesn’t know the difference between the two words.
December 1, 2011 at 5:09 pm
I thought we all learned the difference between “affect” and “effect” in sixth grade. Maybe the writer was out sick the day it was taught.