Strategies for Writing Better MCQs
An often cited 2002 paper on the topic of MCQs contains a thirty-one item list of guidelines for creating effective exams. The complete list is included below.
Haladyna et al. “A Review of Multiple-Choice Item-Writing Guidelines for Classroom Assessment Links to an external site..” Applied Measurement in Education, 15(3), 309–334, 2002
For a more focused approach to creating effective exams, I draw from Parkes and Zimmaro's 2016 book. Here's a few of their strategies for achieving their two guiding principles: increasing exam validity and decreasing the cognitive load for students.
- Avoid Window Dressing: leave out item information that is not connected with content or the actual assessment process
- Beware Copy and Paste: avoid taking language out of context from sources like the textbook
- Watch Your Language: use appropriately complex language and avoid negatives
- Stem-Twisting: use direct questions as often as possible
- It’s Nice to Have Options: develop plausible and well-formatted options
The following video describes those strategies in detail and provides examples.
TABLE 1
A Revised Taxonomy of Multiple-Choice (MC) Item-Writing Guidelines
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Content concerns
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- Every item should reflect specific content and a single specific mental behavior, as called for in test specifications (two-way grid, test blueprint).
- Base each item on important content to learn; avoid trivial content.
- Use novel material to test higher level learning. Paraphrase textbook language or language used during instruction when used in a test item to avoid testing for simply recall.
- Keep the content of each item independent from content of other items on the test.
- Avoid over specific and over general content when writing MC items.
- Avoid opinion-based items.
- Avoid trick items.
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Keep vocabulary simple for the group of students being tested.
Formatting concerns
- Use the question, completion, and best answer versions of the conventional MC, the alternate choice, true-false (TF), multiple true-false (MTF), matching, and the context-dependent item and item set formats, but AVOID the complex MC (Type K) format.
- Format the item vertically instead of horizontally.
Style concerns
- Edit and proof items.
- Use correct grammar, punctuation, capitalization, and spelling.
- Minimize the amount of reading in each item.
Writing the stem
- Ensure that the directions in the stem are very clear.
- Include the central idea in the stem instead of the choices.
- Avoid window dressing (excessive verbiage).
- Word the stem positively, avoid negatives such as NOT or EXCEPT. If negative words are used, use the word cautiously and always ensure that the word appears capitalized and boldface.
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Writing the choices
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- Develop as many effective choices as you can, but research suggests three is adequate.
- Make sure that only one of these choices is the right answer.
- Vary the location of the right answer according to the number of choices.
- Place choices in logical or numerical order.
- Keep choices independent; choices should not be overlapping.
- Keep choices homogeneous in content and grammatical structure.
- Keep the length of choices about equal.
- None-of-the-above should be used carefully.
- Avoid All-of-the-above.
- Phrase choices positively; avoid negatives such as NOT.
- Avoid giving clues to the right answer, such as
- Specific determiners including always, never, completely, and absolutely.
- Clang associations, choices identical to or resembling words in the stem.
- Grammatical inconsistencies that cue the test-taker to the correct choice.
- Conspicuous correct choice.
- Pairs or triplets of options that clue the test-taker to the correct choice.
- Blatantly absurd, ridiculous options.
- Make all distractors plausible.
- Use typical errors of students to write your distractors.
- Use humor if it is compatible with the teacher and the learning environment.
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Haladyna et al. “A Review of Multiple-Choice Item-Writing Guidelines for Classroom Assessment Links to an external site..” Applied Measurement in Education, 15(3), 309–334, 2002