Understanding assessment statistics
Assessment statistics help you see how students performed and which tasks may need another explanation or more practice. They summarize the scores currently saved in grAider, including drafts that you have not yet approved. Review the underlying work before treating these numbers as final.
Open the statistics
- Open the dashboard and select your class.
- Select the assessment you want to explore.
- Choose View stats beside that assessment. On a compact layout, look for the chart icon.
The assessment's title appears below Assessment stats, so you can check that you are looking at the right work. Choose Back to dashboard to return.
Read the overview
The three cards at the top give you a quick picture:
| Card | What it tells you |
|---|---|
| Class average | The average of the included submissions' percentage scores. Each included submission counts equally. |
| Range | The lowest and highest percentage among those submissions. |
| Graded submissions | How many submissions contribute to the overview. This is not the number of students enrolled in your class or the number of approved results. |
Results from submissions marked Ready for Review or Approved can appear here. Submissions still waiting, being processed, or showing an error are excluded. Your saved score changes are included; approval is not required for them to affect the statistics. Reopen or refresh the statistics page after further grading or edits to see the latest results.
Check completeness before comparing results. A submission can be ready for review even when some criteria still need attention. Statistics use the scores that are available, and a missing score is not counted as zero. For an incomplete submission, the displayed possible points cover only its graded regular criteria. This can make its percentage look stronger than its eventual result. Open the submission and resolve missing grades before drawing conclusions. See Reviewing grades and feedback.
Understand the grade distribution
Grade distribution groups the included submissions into percentage bands. The numbers above the points show how many submissions fall in each band. Higher points mean more submissions in that band; the connecting line helps you see the overall pattern. On a narrow screen, scroll the chart sideways if needed.
Use this chart to spot a wide spread of results or a cluster that may benefit from extra support. It shows percentage scores, not a conversion to letter grades or your school's grading scale.
When your rubric includes bonus points
Bonus points add to the awarded score without increasing the regular maximum. A student who earns 20 regular points and 1 bonus point on a 20-point assessment can therefore have 21 / 20, or 105%. These results also affect the average and range.
The chart currently places results above 100% in its final band, labelled 90–100%. Check Student results for the actual percentages rather than reading that band as a strict upper limit. See Preparing rubrics for how bonus criteria work.
Find tasks to revisit
Rubric task averages lists the criteria with saved grades, showing each criterion's average score, percentage, and number of grades included. A criterion under a larger task also shows its parent task description.
- Choose Lowest first to start with the lowest average percentages. This is the default order.
- Choose Highest first to start with the strongest results.
- Choose Show more to read a long description, and Show less to collapse it again.
The sorting compares percentages, so a 2-point criterion and a 10-point criterion can be compared on the same scale. The numbered positions change with the sorting; use the descriptions to identify the original tasks. Percentages below 50% receive a visual highlight, but this is not a school pass/fail decision.
Check the grade count beneath each average. If one criterion has fewer grades than another, their averages represent different sets of available results. Bonus criteria can also appear here; their percentage describes how much of the available bonus credit was awarded.
A low average is a useful starting point for investigation. Read some of the original answers and check the rubric before deciding whether students need more practice, the question was unclear, or the grading guidance needs attention.
Explore individual results
Student results lists submissions from highest to lowest percentage, with their rank, student label, score, and percentage. Equal percentages may still receive consecutive rank numbers, so a different rank does not always mean a different percentage.
Select a student's name to open their submission and review the original work, scores, and feedback. If no student identifier has been entered, the file's display name appears instead. Make any corrections in the review page, then return to the statistics to see how the picture changes.
If statistics are missing
No graded submissions yet means there are no eligible results with a usable percentage for the overview. Return to the dashboard to check progress and resolve any processing or grading errors.
If some results appear but others do not, check the missing submissions' statuses and saved grades. A smaller count does not mean the absent students scored zero. Wait for outstanding work to finish and review any incomplete drafts before using the statistics for final class comparisons.