I talk with many people who are wondering what they can do to improve their GMAT verbal scores, and one theme that constantly comes up is the theme of process. To see what I mean, consider the following.
Let's say someone is practicing Critical Reasoning and is having trouble choosing between the "last two choices." OK, so this hypothetical person does 10 CR questions, is sure of the correct answers to 4, and takes a 50/50 coin toss approach in choosing between the "last two choices" on the remaining 6. Guess what. If the person gets 50 percent of those 6 questions correct, he or she just got 7/10 CR practice questions correct. 70 percent seems decent.
However, is that person strong in CR? Not really. Is that person sure that he or she will get 70 percent of CR questions correct next time or likely to get even 50 percent of hard CR questions correct? No, and also, that person isn't likely to get any better at CR that way either, because basically, he or she is giving up in the middle of questions and not really learning.
Meanwhile, if the 50/50s don't go well, the person could easily end up getting 50 percent or 40 percent of CR questions correct when taking the GMAT.
The issue is that our hypothetical person just got 70 percent of the practice questions in a set correct but is using a super weak process.
Of course, that scenario is a little extreme, but not THAT extreme. So, if that scenario sounds a bit like your verbal training, one thing you can do to improve your verbal performance is to go beyond shooting for, or hoping to choose, correct answers to focusing on process. You can focus on being self-aware regarding whether you are basically lucking into correct answers or are using a robust process and are totally clear about what's going on in questions and about why the inorrect choices are incorrect and the correct answers are correct.
By focusing on process and making sure that the reason why you answered a verbal question correctly is that you used good form and solidly supported your choice, you can develop stronger verbal skills and get to a point such that you reliably get verbal questions correct and consistentlly score high on the verbal section of the GMAT.
For more on how to ace GMAT verbal, you could read this post.
How to Score High on GMAT Verbal