Have you visited Daily Writing Tips online? I love it. It’s a great place to find information on grammar, style and other punctuation issues that writers may have questions about. For instance, below is a link to a post on Affect vs. Effect – two very different however very similar words. If you’ve had problems figuring out which to use you should check out this link.
The various senses of affect, each followed by a sentence demonstrating them, follow:
A noun meaning “mental state”: “In his report, the psychiatrist, noting his lack of expression or other signs of emotion, described his affect as flat.”
A verb meaning “to produce an effect, to influence”: “I knew that my opinion would affect her choice, so I deliberately withheld it.”
The various senses of effect, each followed by a sentence demonstrating them, follow:
A noun meaning “the result of a cause”: “The effect of the lopsided vote was a loss of confidence in the chairman.”
A noun meaning “an impression”: “The soft, gentle tone has a calming effect.”
A noun, usually in plural form, meaning “personal property, possession”: “Among the effects found in the deceased man’s pockets was a small book with his name self-inscribed.”