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Make sense of Canvas quiz reports and turn results into practice

Canvas shows you who got what right. DeckOwl helps you reteach the questions that missed, using practice quizzes built from your own material.

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What a Canvas quiz report tells you

Instructors who open Canvas quiz reports usually want one answer: which questions did students struggle with, and why? Item-level numbers answer that better than the overall score, because a respectable average can hide a single concept most of the class never grasped.

Difficulty index: the share of students who answered correctly, so a low value flags a hard question.
Discrimination index: compares high and low scorers, so a weak or negative value suggests a question needs review.
Distractor counts: wrong answers chosen by few students add little challenge and may be worth rewriting.
A quick check of the answer key and wording whenever strong students miss a question more often than weaker ones.

Example Canvas quiz report questions with answers

In item analysis, what does a difficulty index of 0.92 mean?About 92 percent of students answered correctly, so the question is easy. The difficulty index is simply the proportion of students who got it right.

What does a positive discrimination index tell you about a question?Students who scored high overall were more likely to answer it correctly than low scorers. Discrimination compares correct rates between top and bottom score groups.

Why check how often each wrong answer was chosen?Wrong answers picked by very few students are weak distractors that add little challenge. A good distractor should attract students who did not understand the concept.

If strong students miss a question more than weak students, what should you check first?Check the answer key and the wording for errors or ambiguity. A negative discrimination value often signals a keying or phrasing problem rather than a learning gap.

Why can a decent class average be misleading?An average can hide questions most of the class missed. Question-level data shows which specific concepts need reteaching.

Generate the full set

Read item-level results

See which questions most of the class missed, not just the overall average, so you know exactly which concepts need another pass.

Build quizzes from your files

Upload PDFs, slides or notes and get multiple-choice, true/false or open questions with explanations for each answer.

Export when you need to

Download quizzes as PDF or DOCX on Plus, and as QTI 2.1 or Moodle XML on Pro.

How it works

Review the report

Open the quiz report in Canvas and note questions with low correct rates or weak discrimination.

Upload the source material

Add the lecture slides, readings or notes that the flagged questions came from.

Generate and study

Create a fresh quiz on those topics with explanations, then practice until the missed concepts stick.

Once you know the weak spots, the next step is reteaching them. DeckOwl reads your slides, notes or PDFs and produces multiple-choice, true/false or open questions with explanations, so each flagged topic can get its own short practice set.

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Frequently asked questions

How do I read difficulty and discrimination in a quiz report?

Difficulty shows the proportion of students who got an item right, and discrimination shows whether stronger students did better on it than weaker ones. A question that almost everyone misses, or that high scorers miss more than low scorers, deserves a closer look at the wording and content.

What should I do after finding a question most students missed?

Reteach the underlying concept with a short explanation, then practice it with questions that approach it from a different angle. Re-checking the source material helps confirm whether the gap is in understanding or in how the question was written.

Can I export generated quizzes?

Yes, but exports are paid features. Plus includes PDF and DOCX export, and Pro adds QTI 2.1 and Moodle XML export.

Do I need a credit card to start?

No. The free plan includes 3 generations per month and studying in the browser, and no credit card is needed to start.

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