Quick answer: what are Questions to Review?
Questions to Review are questions you have already answered that have reached their next scheduled check-in. Some may be questions you missed. Others may be questions you answered correctly and are revisiting to make sure the information lasts.
This approach is called spaced review: instead of repeating a question over and over in one sitting, you return to it after a little time has passed. Spacing reviews apart and retrieving an answer again are well-supported learning strategies for longer term retention. A review in Nature Reviews Psychology explains the evidence behind spacing and retrieval practice.
How QSO Study schedules a question for review
Every answer updates a private study record for that question. The record includes whether your recent answers were correct, how many qualifying correct answers you have earned, and the question's current learning stage. From there, QSO Study sets the next review date.
| Most recent result | Next review |
|---|---|
| Incorrect or marked “I don't know” | About 15 minutes |
| Correct, still learning | About 1 day |
| Familiar | About 3 days |
| Strong | About 7 days |
| Mastered | About 21 to 30 days |
Why a correct answer can still come back
A correct answer is encouraging, but one quick success does not always mean the fact will be there on exam day. A question can appear in Questions to Review after you answered it correctly because enough time has passed to check whether you can still recall it without relying on the last few minutes of memory.
Questions to Review is not the same as Missed Questions
Missed Questions are questions you answered incorrectly or marked unknown. Questions to Review is broader: it includes scheduled reinforcement for questions you may have answered correctly, too.
How a question moves toward mastery
Correct answers build progress gradually. To earn another mastery credit, a correct answer needs to happen in a separate study session at least 12 hours after the prior qualifying answer. That prevents a rapid repeat inside one session from making a question look more secure than it really is.
As a question becomes familiar, strong, and then mastered, its review intervals grow. If you miss it later, QSO Study brings the question back sooner and can lower its learning stage.
What should you do with Questions to Review?
Use them as a short maintenance session when you return to QSO Study. You do not need to clear every item before learning something new. A consistent mix of new questions, practice exams, and scheduled review is a much better path than waiting until the night before the exam to cram the whole pool.
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