Effort: High
What to notice
Review an error and retry with a variant rather than memorize the same answer.
Where it fits
- Fits
- Users learning operational skills or decision criteria.
- Use it when
- When task variants can assess the same skill fairly.
- Avoid it when
- When correctness is ambiguous and retry criteria cannot be explained.
How to build it
- State the skill criterion in advance.
- Provide an explanation and brief practice after an error.
- Check the same skill with changed conditions.
Measure
- Main metric
- Share of eligible learners meeting the criterion on a variant task
- Guardrail
- Excessive retry burden and poor delayed retention
- How to measure
- Allocate comparison groups before exposure and use equal follow-up and eligibility. Track Share of eligible learners meeting the criterion on a variant task alongside Excessive retry burden and poor delayed retention.
When it backfires
Do not prevent exit until passing or charge for repeated failure.
Alternatives
Theory behind it
Mastery-oriented goals
The same task can emphasize outperforming others or developing competence.
Practitioner framework
Error management training
Learn to detect and recover from errors in a practice environment without real consequences.
Well supported
Retrieval practice
Distinguish practicing retrieval from simply rereading material.
Limited evidence
Evidence limits: An editorial web application; conversion effects on this interface are unmeasured. This is an educational synthesis, not evidence that all rankings harm. Do not confine experienced users to easy tasks.