When law school admissions committees receive an application, an index score is created, which is an aggregate of your GPA and LSAT score. The problem is that at most schools, the GPA and LSAT score are weighted differently. In fact, it's safe to say that at most law schools, the LSAT score is twice as important. That's why I always tell my LSAT students that their application should be prioritized in the following way:
10%: Recommendations, résumé, personal statement
The LSAT score is such a large part of the admissions decision that you need to tread carefully with your LSAT preparation. If you don't have sufficient time to prepare, then don't even register for the LSAT. What is a sufficient amount of LSAT preparation? For full-time students and those with full-time jobs, it has historically been 6–9 months. It's not impossible to score well with much less time (my own LSAT preparation took 3 months), but that's only if you're already scoring high without any test preparation or you aren't in school or working.
Since a high GPA is not correlated at all with a high LSAT score, do not mistakenly assume that you won't need to prepare as much as everyone else. Many people don't understand why the GPA wouldn't be correlated with the LSAT score. What does a high GPA indicate? It indicates diligence, the willingness to work hard for 4 years. A high LSAT score indicates your ability to read and reason quickly. One doesn't need to read and reason quickly to get good grades in college courses, so it makes sense that there would be no correlation. Once again, a high GPA does not exempt you from a lot of preparation. If you're considering the September 2014 LSAT, for example, it's not too early to start preparing now, even if your GPA is a 3.95.
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