Commonly Confused Words to Know for the TEAS
The English section of the ATI TEAS can test your ability to recognize correct word usage, sentence construction, and standard English conventions. One area that can cause unnecessary mistakes is commonly confused words. These words may sound similar or look almost identical, but they have different meanings or grammatical functions. Learning the differences can help you answer questions more confidently.
Affect vs. Effect
Affect is usually used as a verb meaning to influence something. Lack of sleep can affect your concentration. Effect is usually used as a noun meaning a result or consequence. Lack of sleep can have an effect on concentration. A useful shortcut is to remember: Affect = usually an action Effect = usually a result There are exceptions, but this distinction works for many basic TEAS questions.
Its vs. It’s
Its shows possession. The nursing program changed its schedule. It’s is a contraction of it is or it has. It’s important to review the material. Try replacing “it’s” with “it is.” If the sentence still makes sense, the contraction may be correct.
Their, There, and They’re
These three are frequently confused. Their = possession There = a place or position They’re = they are Examples: Their books are on the table. The calculator is over there. They’re preparing for the test.
How to Practice
Instead of simply memorizing lists, write your own sentences using each word. Then check whether the meaning and grammar are correct. You can also create flashcards with the confusing words on one side and their definitions and examples on the other.
Final Takeaway
Commonly confused words become easier once you focus on their meaning and grammatical role. Review pairs such as affect/effect, accept/except, its/it’s, your/you’re, and their/there/they’re as part of your TEAS English preparation.



