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How to Add Rubric Grading to a Survey Question

BlockSurvey can grade open-text answers using AI. You define a Rubric that describes what a good answer looks like, and the AI scores each respondent's answer against it. This saves you from having to grade every response manually.

Set Up Rubric Grading

  1. Add a Short text or Long text question to your survey.

  2. Click the Add Rubric button on the question.

  3. Choose the size of your Rubric by selecting the number of criteria (up to 5) and the number of levels for each criterion (2 to 5).

  4. Click Generate to let AI create the criteria and level descriptions based on the question label.

  5. Review the Rubric in the table. You can:

    • Edit any criterion or level description.

    • Change the points assigned to each level.

    • Add or remove criteria manually.

    • Let AI make changes by typing your instructions above the table and clicking Update with AI.

  6. Click Add Rubric to save it. The question will now display a Rubric label along with its total points.

  7. Publish your survey and test it with a sample answer.

Respondent Experience

Respondents answer the question as they normally would. The AI grades their answers in the background when they submit their responses.

View Rubric Grades in Responses Tab

  1. Go to the Responses tab. Answers submitted after you added the Rubric are automatically graded.

  2. Click Show Rubric Grade to display the grade columns in the table. This also grades any previous responses that do not have a grade yet.

  3. Open a response to view its Rubric Grade, including:

    • Total score

    • Percentage

    • Level assigned to each criterion

    • Reason for each criterion's grade

  4. The final grade displayed is rounded to the nearest whole number for consistency.

If You Make Changes Later

  • Edit a respondent's answer: The answer is automatically regraded.

  • Change the points assigned to a level: The scores are updated immediately.

  • Change a criterion or level description: Previous grades are no longer valid. Click Show Rubric Grade again to regrade those answers using the updated Rubric.

Try It Out!

Give it a try! Follow the steps above to set up question-level Rubric Grading and start grading open-ended responses automatically.
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