[found on quickanddirtytips.com]
“What Is the Difference Between Affect and Effect?
Before we get to the memory trick though, I want to explain the difference between the two words: The majority of the time you use affect with an a as a verb and effect with an e as a noun.
When Should You Use Affect?
Affect with an a means “to influence,” as in, “The arrows affected Aardvark,” or “The rain affected Amy’s hairdo.” Affect can also mean, roughly, “to act in a way that you don’t feel,” as in, “She affected an air of superiority.”
When Should You Use Effect?
Effect with an e has a lot of subtle meanings as a noun, but to me the meaning “a result” seems to be at the core of all the definitions. For example, you can say, “The effect was eye-popping,” or “The sound effects were amazing,” or “The rain had no effect on Amy’s hairdo.””
To read the full article on Affect vs. Effect from Grammar Girl at QuickAndDirtyTips.com, click HERE.
Editing Addict, LLC 