The primary goal of an
error log is to provide you with actionable intelligence that brings about positive behavioral change and ultimately leads to a higher GMAT score. To accomplish this, you will find it useful to answer the following questions:
1. What types of GMAT questions are you getting incorrect?
2. What exactly happened that led you to get each GMAT question wrong?
3. Did you fall for a trap?
4. Did you fail to consider an important piece of information.
5. How can you prevent these mistakes in the future?
These tips and many others are covered in the following article:
GMAT Error Log: Do I Need One?