Test Analysis
Assessment analysis
Unanswered Question Rate Calculator
Separate omitted questions from answered questions across one test administration.
Enter the response opportunity counts
How the quantities relate
Basis: Every tested student is assumed to have the same number of question opportunities.
Blank responses across a test
Twenty-eight students answering 40 questions create 1,120 opportunities. Eighty-four blanks produce a 7.5% unanswered rate, averaging three per student.
Blank does not always mean unknown
Nonresponse can result from time limits, navigation, skipped pages, uncertainty, or disengagement.
Inspect where omissions occur rather than interpreting the aggregate as lack of knowledge.
One next step is to check whether pacing may contribute to omissions.
Variable test forms need another denominator
If students receive different question counts, sum actual response opportunities across forms.
Multiplying one question count by all students would misstate exposure.
A later check can inspect correctness and omissions for one item.
Keep the response matrix available
Record the administration, form, student count, available items, omitted instances, and completion rules. The matrix reveals clustering that the headline rate cannot.
Separate technical interruptions and invalidated items before attributing blanks to student behavior.
Compare early and late test positions to investigate speededness, while considering randomized order.
For low-frequency omissions, publish counts with percentages so a small numerator remains visible.
If a student exits early, distinguish questions never presented from presented questions left blank. Only presented opportunities belong in a response-rate denominator.
Map blanks by item position and content area before concluding time pressure.
A digital platform may record a cleared answer differently from an untouched question; reconcile those event codes.
When accommodations provide different time limits, compare omission patterns within appropriate conditions rather than treating time exposure as identical.
At student level, distinguish a broad pattern of occasional blanks from a smaller group with extensive nonresponse. The same aggregate rate can arise from either distribution and implies different follow-up. Protect privacy when examining individual patterns, and use the records only for the stated educational purpose.
When reporting by item, use each item's actual presented-response denominator. A test-wide opportunity total is suitable for the overall rate but can misstate an item rate after form branching, invalidation, or selective administration.
Clarifying the inputs
Should not-reached and intentionally skipped items be separated?
Yes, when the testing system records those statuses.
Do omitted questions count as incorrect?
That is a scoring-policy question; this page reports response behavior.
Can adaptive tests use this model?
Only after summing each student's actual question opportunities.
Count actual response opportunities
- Confirm valid test takers.
- Verify questions available per test.
- Count blank response instances.
- Review their location and timing.