"Effect" is a noun referring to something that happens as a result of something else. E.g., "The antibiotic had little effect on the illness."
"Effect" is also a verb meaning to bring something about. E.g., "I have decided to effect a change in the scope of this article.";
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The verb "affect" means to change something in some way. E.g., "His steady gaze affected my ability to breathe."
The noun "affect" is used fairly rarely. It refers to a display of an inner state of mind. E.g., "Her affect is subdued this evening."
Use “effect” as instructed.
Use “affect” as instructed.
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