What is a Comma Splice? How to Fix Run-On Sentences and Improve Sentence Structure
Understand what a comma splice is and how to avoid it. Learn correct ways to join independent clauses using conjunctions, semicolons, or periods.
What is a Comma Splice?
A comma splice occurs when two independent clauses are incorrectly joined by a comma instead of a conjunction, semicolon, or period.
Example of a Comma Splice
Incorrect: “The data was analyzed, the results were significant.”
Correct: “The data was analyzed, and the results were significant.”
How to Fix a Comma Splice
- Use a conjunction: “The test was challenging, but the students succeeded.”
- Use a semicolon: “The test was challenging; the students succeeded.”
- Use a period: “The test was challenging. The students succeeded.”
Why It Matters
Comma splices confuse readers and weaken sentence structure. Academic writing values precision, so avoid joining independent ideas with just a comma.
Final Tips
Review sentences with commas joining complete thoughts. If both halves can stand alone, use proper punctuation or a conjunction to separate them.
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