Do not perform a practice GRE until you have fully analyzed the previous GRE and have spent some time studying the weaknesses that appeared in the last test. That should take at least a week, and ideally ten to fourteen days. After you put your GRE preparation at full speed, you should set an interval to take the mock exams afterwards. This interval can be from 1 to 2 weeks, depending on the pace of study.
After finishing a mock, you need to spend enough time analyzing the entire exam to find your mistakes, identify trends (in the kind of questions that are wrong), and find the topics you struggled with during the exam. Set aside time for six more long-term practice exams. Take one practice test after 1 month of study, one at 6 weeks, and then one a week for the 4 weeks before GRE. You will take your last practice test 1 week before test day.
Take practice tests to measure your progress, familiarize yourself with the time and format of the test, and increase your mental stamina. After each test, spend at least 1.5 hours reviewing the answer explanations. Your baseline score is the score you would receive if you took the GRE today. Before doing a curriculum, take a full GRE practice test in the same test environment as the real one.
The results will guide your preparation by showing you which content areas you need to focus more on. Practice tests are great for determining the pace and your own tendencies to take tests. These are very important things to be developed. In general, the test is a test of patterns, not facts, so if you want to increase your GRE score, you'll need plenty of time to practice.
It is often a daunting prospect for many to take the GRE because of its reputation as a complicated exam. But then, every one or two weeks, you need to set aside a few hours to test yourself with a full GRE simulator exam. To be fully prepared, sit down with a coach to review your performance on practice tests and make a smart plan to meet your GRE score goal.