Distractor
A distractor is an incorrect option in a multiple-choice question. Good distractors are the specific wrong answers real students actually arrive at, not obvious throwaways.
The quality of a multiple-choice question lives in its distractors. When each wrong option is built from a genuine misconception or a commonly skipped step, the question becomes a diagnostic: where the class clusters tells you exactly what to reteach.
Weak distractors, by contrast, are too silly to consider, which turns a four-option question into a coin toss between the two plausible ones and tells you little about who understands.
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