How to Make a Multiple Choice Quiz: Write It, Build It, Give It to Your Class
Posted on20 October 2026
Photo by Jessica Lewis on Unsplash
Short answer: To make a multiple choice quiz, decide what each question should test, write a clear question (the stem), one correct answer and two or three wrong answers built from real student mistakes. Check every question for clues, then build the quiz on paper, in a form tool or in a quiz app, and set the answer key.
What a multiple choice question is made of
Every multiple choice question has three parts:
- The stem is the question itself.
- The key is the one correct answer.
- The distractors are the wrong answers. Their job is to look right to someone who has not learned the material, and wrong to someone who has.
Here is a short example:
> Which gas do plants take in from the air to make their food? > A. Oxygen > B. Carbon dioxide > C. Nitrogen
The key is B. Oxygen is a good distractor because many students mix up what plants take in with what they give off. Nitrogen is a good distractor because it makes up most of the air, so a student who is guessing may pick it. Neither is silly, and neither gives the answer away. That is the whole skill: a quiz is only as good as its wrong answers.
Watch on YouTube: Test creator app where the whole class joins with one code | Room Quiz
How to make a multiple choice quiz in 6 steps
1. Decide what the quiz should check. Write down the three to five things students should know after the lesson. Each question should test one of them. A ten-question quiz on one lesson is plenty for a quick check; a mid-term may need thirty or more.
2. Write the stem as a full question. A student should be able to answer it before reading the options. "Which gas do plants take in to make food?" works. "Plants:" followed by four statements does not, because the student has to read every option to find out what you are asking. The University of Waterloo's teaching centre puts it simply: express the full problem in the stem.
3. Write the correct answer next. Make it clearly right, and short. If you need three lines to make it correct, the stem is missing information.
4. Build the wrong answers from real mistakes. Think about the wrong answers you saw in homework or heard in class. Those make the strongest distractors, because they catch the exact misunderstanding you want to find. Keep every option about the same length and in the same style as the key.
5. Check each question for clues. Read the stem with each option out loud. Does only one option fit the grammar? Is the right answer the longest one? Does it repeat a word from the stem? Fix any of these, because test-wise students spot them.
6. Build the quiz and set the answer key. Put the questions on paper, in a form tool or in a quiz app (the options are compared below). Mark the correct answer for every question, give each one its points, and mix up where the right answer sits so A, B, C and D come up about equally.
How to write wrong answers that work
Most weak quizzes fail on the distractors, not the questions. The table shows the difference on the photosynthesis question above.
| Weak option | Why it fails | Stronger option |
|---|---|---|
| "A banana" | Nobody picks it, so it does nothing | "Oxygen" (the common mix-up) |
| "All of the above" | A student who knows two options are right can guess it | A single, specific wrong answer |
| "Plants never take in any gas" | Words like never and always are easy to rule out | "Nitrogen" (plausible, but wrong) |
| A two-line option next to one-word options | The odd length stands out | Options of similar length |
A few more rules from the item-writing research, which Haladyna, Downing and Rodriguez reviewed in 2002 for classroom tests:
- Avoid negative stems ("Which is NOT…"). If you must use one, put the key word in bold capitals.
- Skip "none of the above". It only shows that a student can rule things out.
- Make sure options do not overlap. "Under 10" and "under 20" cannot both be wrong.
- Put number answers in order, smallest to largest, so the order gives nothing away.
How many answer options should a multiple choice question have?
Three is usually enough. A meta-analysis of 80 years of research by Michael Rodriguez is titled, plainly, Three Options Are Optimal for Multiple-Choice Items (Educational Measurement: Issues and Practice, 2005). The reason is practical: a fourth or fifth option is often a filler that nobody chooses, so it adds reading time without making the question harder.
What this means for you:
- Three options (one key, two good distractors) when you can only think of two believable wrong answers. This is most of the time.
- Four options when you genuinely have three mistakes students make. Do not invent a weak one just to reach four.
- Five or more rarely helps in a classroom quiz.
Three-option questions are also faster to read, so you can ask more questions in the same time, which makes the quiz a fairer picture of what each student knows.
Ways to make a multiple choice quiz, compared
Once the questions are written, you need somewhere to put them. Here are the three common ways.
| Paper | Google Forms | A quiz app such as Room Quiz | |
|---|---|---|---|
| What students need | A pen | A device and the form link | A phone with a browser and a six-character code |
| Marking | By hand | Automatic, with an answer key | Objective questions graded automatically |
| Copying risk | Same paper for everyone | Question order and option order can be shuffled | Question order and answer options shuffled per student |
| Suits | No devices in the room | Homework and take-home quizzes | A graded quiz in the room, right now |
On paper: print one version, or make two versions with the questions in a different order to stop glancing at a neighbour's sheet. Mark with a key held next to each sheet.
In Google Forms: Google's own help page explains it. Open a form, go to Settings and turn on Make this a quiz. Add a question, choose the answer options, then click Answer key to mark the correct one and set its points. Under Release grades you choose whether students see their score right after they submit or after you review it (Google's quiz instructions).
In a quiz app: this is the easiest way when the whole class is in front of you. In Room Quiz you create a course, add your questions (multiple choice with one answer or several, true / false, fill in the blank, short answer and essay can sit in one exam) and set the correct answer and points for each. Then you open the room: a six-character code and a QR code go on the projector, and students join from any phone browser. They do not install anything or make an account.
Giving the quiz in class without copying
The weak point of any quiz on phones is the student in the next seat. Two settings remove the easy glance:
- Shuffle the question order, so neighbours are not on the same question at the same moment.
- Shuffle the answer options, so "it's B" is useless advice, because B is a different answer on every screen.
Add a timer so the quiz ends at the same time for everyone. Room Quiz has all three. No setting stops a determined student with a second device, but these take away most of what actually happens in a real room.
If you already have questions in a spreadsheet, Room Quiz imports them from CSV. If they are on an old paper, you can upload a PDF, a Word file or a photo of it and the AI drafts questions for you to review and edit; nothing is saved until you have checked each one. Everything goes into a question bank, so next term's quiz starts from this term's.
After the quiz: what the results tell you
Marking is not the end. Look at the questions most students got wrong. If most of them chose the same wrong answer, that distractor has found a real misunderstanding, and that is the topic to teach again. If a question was wrong for almost everyone with answers spread across all options, the question itself may be unclear: rewrite it before you use it again. If everyone got a question right, it may be too easy to tell you anything; keep it as a warm-up or make the distractors sharper.
In Room Quiz, when every question is objective, each attempt is scored while the room is open, so the marking is done when the last phone goes down. Students see their result once their exam is graded.
Build the quiz on your phone, project a six-character code, and students answer from their own phone browsers with no app and no account. Objective questions are graded automatically, and question order and answer options can be shuffled per student.
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How do I make a multiple choice quiz for free? Google Forms is free: turn on "Make this a quiz" in its settings and set an answer key for each question. Room Quiz is free for one active course with unlimited students, so a teacher with one class can give graded quizzes in the room without paying. Paper costs nothing but your marking time.
How many questions should a multiple choice quiz have? For a quick end-of-lesson check, 5 to 10 questions is enough. For a unit test, 20 to 40 gives a fairer picture, because one unlucky guess matters less. Allow roughly a minute per question, more if questions need calculation.
How many answer choices should each question have? Three is usually enough: one correct answer and two believable wrong ones. Research summarised by Rodriguez (2005) found three options work as well as four or five, because extra options are often fillers nobody picks. Use four only when you have three real mistakes to offer.
How do I stop students cheating on a multiple choice quiz? Shuffle the question order and the answer options for each student, and set a time limit. On paper, hand out two versions with the questions in a different order. Questions that test understanding, not a single fact, are also harder to copy.
What makes a good multiple choice question? A clear stem that can be answered without the options, one answer that is clearly correct, and wrong answers based on mistakes students really make. Options should be similar in length and style, with no "all of the above" and no words like "always" or "never".