Many writers are befuddled by affect and effect. Today I’m going to offer you some practical tips, unconventional advice, and advanced information about these two words.
Here’s a trick for keeping them straight: Affect is usually an action – both affect and action start with “a.”
Effect is usually a thing: the effect. Did you notice there are two e’s in a row? The effect.
Let’s go on to the unconventional advice. Here it is: Don’t use the verb affect. Ever. Here’s why: It’s vague.
The new medication affected his glucose level.
Did the medication raise the glucose level – or drop it? Was the change beneficial – or harmful?
I used to circle affect on students’ papers and ask for a revision with a more specific word. Here’s what I would get back:
The new medication altered his glucose level.
You can choose from some useful substitutes: help, harm, benefit, improve, damage…you get the idea.
Let’s go on to the advanced information. Earlier I told you that affect is usually an action, and effect is usually a thing. Why did I fudge with “usually”? I did that because professionals use these words in specialized ways.
- Effect can be a verb (action) that means “bring about change”: “The benefits effected by the new policy did not justify its cost.”
- Psychologists sometimes use affect to mean emotion: “The dramatic changes in affect proved that the new therapy was working.”
I suggest leaving these two usages to the specialists.
Before we return to conventional usage of affect and effect, allow me a digression. I struggle with the words petal, pedal, and peddle. Just this morning I saw peddle used correctly in a newspaper article, and my immediate reaction was that it was wrong. I had to stop and think before I mentally congratulated the journalist for getting it right.
Petal (which I always confuse with pedal) is a particular problem because I do all of my husband’s typing for him – and he is, of course, a garden writer. Do you have any idea how many plants have petals?
My point is that I always slow down, double-check, and ultimately get these troublesome words right (even when my husband is impatiently waiting to dictate the next sentence about his damned petunias).
So here’s some advice when you’re dealing with confusing words like affect and effect: Get out a dictionary, go online, call your mother-in-law who’s a grammar curmudgeon – do whatever you have to do, but don’t guess when you encounter a troublesome word!