Each entry should lead to a decision
An error log can be a notebook, document, or spreadsheet. Its format matters less than its purpose: finding what went wrong and deciding what to work on next. The method proposed here is a personal organizational tool, not an official exam protocol or a promise of a measurable score increase.
GMAC recommends reviewing answer explanations to understand your mistakes. An error log builds on that practice: instead of concluding “I get it,” write down what you will do differently. A useful entry can be just a few sentences; ten detailed entries are worth less than one decision you actually put into practice.
Distinguish the cause from the observation
“Wrong answer” describes the result. Look for what caused it: a missing concept, a forgotten word, a relationship translated incorrectly, a calculation error, or a poor time-management decision. If several causes overlap, start with the earliest one in your reasoning. A correct method carried out slowly calls for different work than a method you do not yet know.
Add how confident you were. A correct answer reached by guessing also deserves an entry; a wrong answer based on nearly correct reasoning calls for a focused correction. ETS emphasizes the variety of GRE response formats: failing to notice that multiple choices must be selected, for example, is an instruction-reading error, not necessarily a math gap.
A template you can copy as is
The following scenarios are fictional. Use a reference to find your own work; it does not justify copying or sharing protected test questions. Add the date of your session and leave the verification column open until you have actually tried a new problem.
| Situation | Identified cause | Correction to remember | Next check |
|---|---|---|---|
| Math: €80 increased by 25%, then decreased by 20%; answer: €84. | I added rates applied to different bases. | Write the multipliers: 80 × 1.25 × 0.80 = €80. | Calculate €100 increased by 10%, then decreased by 10%: €99. Explain the base for each change. |
| Reading: the question asks for the statement not supported; I choose a supported statement. | I missed the negative wording in the instruction. | Restate the task before comparing the choices. | For three new prompts, first write down what the answer must establish. |
| English: “The meeting has been postponed until Thursday.” interpreted as a canceled meeting. | I confused “postponed” with “canceled.” | “Postponed” means rescheduled; here, the new date is Thursday. | Write a sentence with each word, then identify the action in a new exchange. |
| Timed practice: several minutes spent on one question, leaving the final questions rushed. | I had not decided when to stop pursuing an unproductive approach. | Set a decision point that fits the test rules. | Watch for that point in a new set and note the decision you make. |
The pitfall
The pitfall would be creating a collection of worked solutions
Copying a solution can feel like studying without requiring you to reconstruct the reasoning. Instead, write the missing step between your attempt and the correct method. If you cannot identify that step, revisit the explanation and test your understanding on a simple example.
Do not create so many categories that you spend more time sorting than solving. Four or five clear causes may be enough to start. Combine genuinely identical entries and keep a representative example. The log should remain a practical reference, not grow into an archive so large that it discourages you.
Open the log before choosing your exercises
At the start of your next session, choose a recurring cause and complete the planned check without looking at the worked solution. Compare your approach, not just the result. If it works on a different problem, record that. If the error persists, refine the cause and break the exercise down to the step where you get stuck.
Pacing and navigation rules are specific to the test you are preparing for. A strategy for moving on to the next question does not automatically transfer from the GRE to the GMAT or TAGE MAGE. You can use one log for several exams, but each strategy decision should be tagged with the format it applies to.
Key takeaways
- A useful error-log entry includes a cause, a correction, and a next attempt.
- Include correct answers reached without a reliable method.
- Check your progress on a new exercise before considering the difficulty resolved.