Edit the draft for run-ons and comma splices at the sentence level, and attribute key claims to real, named sources using signal phrases.
Sentence-level editing is the final polish pass after structure is settled: fixing run-ons and comma splices, keeping verb tense consistent, and varying sentence openings so the essay does not sound repetitive. It comes after structural revision on purpose -- there is no point polishing a sentence that might still get cut or moved.
An op-ed also needs honest attribution. Unlike a formal research paper, an op-ed usually names its source right inside the sentence with a signal phrase -- "according to the CDC," "as researchers at Stanford found" -- rather than a formal citation. The source must always be real and specifically named; writing "studies show" without naming which studies borrows credibility dishonestly.
Mastery looks like: They correct run-ons and comma splices and attribute key claims to real, named sources using signal phrases.
Common stumbles: Leaving a persuasive-sounding claim ("experts agree...") unattributed to any real, checkable source.
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Interactive, spoken-aloud tools that show this idea in motion.