clipped from: grammar.quickanddirtytips.com   

Today's topic is when to use affect with an a and when to use effect with an e.


 So, for our purposes, affect with an a is a verb and effect with an e is a noun; and now we can get to the mnemonics. First, the mnemonic involves a very easy noun to help you remember: aardvark.

"But why aardvark?" you ask. Because there's an example to help you remember as well. It's, "The arrows affected the aardvark. The effect was eye-popping." It should be easy to remember that affect with an a goes with the a words arrow and aardvark, and that effect with an e goes with the e word eye-popping. If you can visualize the sentences, "The arrows affected the aardvark. The effect was eye-popping," it's pretty easy to see that affect with an a is a verb and effect with an e is a noun.


affect effect cartoon

Rare Uses of Affect and Effect http://xkcd.com/326/

Affect can be used as a noun when you are talking about psychology.

Effect can be used as a verb that essentially means "to bring about," or "to accomplish."