How to use our Affect Or Effect Checker
Enter any text containing “affect” or “effect,” and our checker will mark each occurrence as correct or incorrect. Click a highlighted word to see the recommended replacement.
The Affect Effect
Though not pronounced exactly the same, affect and effect are similar enough in sound, spelling, and meaning to cause considerable confusion for many people. If you’ve ever been stuck staring at your screen wondering if you picked the right one, fear no more. Once you learn a few simple guidelines and tools, you can feel confident in understanding and using this tricky pair correctly.
- Affect = usually a verb (action / influence)
- Effect = usually a noun (result / outcome)
- Affected = influenced, changed (adjective)
- Effective = successful in producing the desired effect (adjective)
The Basic Rules
Affect is almost always used as a verb. (A verb is a word that describes action or state of being.) Think “A” for affect and “A” for action. Affect shows how one thing will influence or cause another thing to happen. Study these examples:
- Will failing yesterday’s algebra test affect your grade?
- The dog was affected by the move more than we anticipated.
- The wildfire will affect the region for generations to come.
Effect, on the other hand, is almost always used as a noun. (A noun describes a person, place, thing, or idea.) Remember the phrase “cause and effect.” The effect is the result of some action. It has been caused. Effect can be singular or plural, depending on if you are referring to one result or many. Here are a few examples to guide you:
- What effect did his unkind words have on you?
- The effects of the storm were obvious everywhere we looked.
- The study explained the longterm effects of gaming on children’s attention spans.
Notice that in each of these examples there is a cause that is leading to the effect(s)—his words, the storm, gaming.
A Few Other Meanings
Though less common, affect, still being used as a verb, can also carry the idea of pretending something that is not necessarily real or true.
- He affected blindness so as not to be expected to respond.
- She affected shock when we yelled, “Surprise,” though she’d learned of the birthday party a week ago.
Effect is a versatile noun with a wide array of definitions and uses. You have probably heard of “special effects” used in filmmaking, the tricks that make the impossible seem real. Effect can also refer to an impression that is created by a certain type of art, music, or lighting.
- The candlelight gave the room an eerie, haunted house effect.
- The baking cookies gave the effect of homeyness in the sterile living space.
- We went with the dramatic intro music for effect.
Additionally, effect is often paired with other words to form a new term:
- His resignation had a ripple effect on the whole school.
- The greenhouse effect had some bearing on the unusual weather patterns.
You can see in those examples how there is a primary cause that leads to results. A stone is dropped into a pond and ripples flow outward. A ripple effect is when one event sets in motion many others.
Effects (plural) is sometimes used (still as a noun) to describe a person’s possessions.
- They lost nearly all their household effects in the fire.
- Were the fallen soldier’s personal effects returned to his family?
If something is in effect it is currently active and working.
- An outdoor burn ban is in effect due to the drought.
- Are the new school rules in effect immediately, or will an announcement be made regarding them?
The phrase to that effect means “for that purpose.”
- I wanted her to redo the reports and left her a memo to that effect.
- He needed to try a different medication and made an appointment with the doctor to that effect.
Affected Adjectives
Affected is the past tense of affect, and can be used as an adjective. If something is affected, it is influenced or changed.
- The affected parties will have a court date next month.
- All affected lesson times will be rescheduled for a make-up session.
- Was your plan affected by his surprise visit to town?
Effective is an adjective used to describe something or someone that achieved the desired effect. For example:
- This new app is effective in keeping track of my fitness goals.
- The quarterback’s new training was obviously effective in improving his play.
- An effective method for managing pain is through preventative care.
Where It Gets Weird
In a few rare instances, affect can be a noun and effect can be a verb.
Affect(s) is used as a noun in clinical psychological references. It refers to the physical signs that a patient typically displays with a certain emotion, or to the emotion that normally results from a certain situation.
- Dr. Yin said the patient demonstrated the typical affect of clinical depression.
- Her therapist noted that she had no affect when discussing her childhood trauma.
Effect can be a verb meaning to accomplish a desired end. For example:
- Even an ordinary citizen can effect change.
- The team effected a complete transformation through their determination and hard work.
Don’t worry. These usages are specific and rare and should not derail your competency in using affect and effect correctly in ordinary writing. As always you have our Affect Or Effect Checker if you get stuck.
Grab and Go
For the vast majority of normal, everyday usage, affect will be an action and effect will be a result. If you can substitute the word “influence” and the usage shows action, then the word you want is affect.
- Did the lack of voter turnout affect [influence] the election results?
- Will the inheritance affect [influence] her lifestyle choices?
On the other hand, if you can substitute the word “result” and the usage is describing a thing (concrete or abstract), then use effect.
- One of the effects [results] of the decision was his unwillingness to return to the soccer team.
- I wonder what the effect [result] will be from her missing her flight to the conference.
Conclusion
If you get stuck or cannot remember a specific, consult with a dictionary or our Affect Or Effect Checker. It is quick and simple to look up either word, and the definitions offer detailed and immediate clarification. Hopefully the effect of this article has been to affect your writing in a positive way toward clarity and precision!
If you are interested in similar potentially confusing words like affect and effect, be sure to check out our Who or Whom Checker and our Then or Than Checker.