Affect and effect. Many people mix them up.
Affect as a verb, means to influence: How did she affect the outcome?
Effect as a verb, means to bring about a result: The movers effected a speedy move.
Effect as a noun, means a result: The music had a soothing effect on everyone.
Do NOT get it wrong. Editors HATE being forced to correct basic writing. Such simple, avoidable mistakes make a journalist look foolish.