OK Lisa, do you remember much about when you took the test?
For instance, people often make two big mistakes - not planning a framework of what they will write, or obsessing about it being perfect.
Since I got a 6.0, I think I can pretend to have understood how it works, and it seems to be like this. First, remember that you are writing to 2 audiences - a computer and a human. And the human is likely to b a low-ranking clerical type. So what you need to do before you even go in to take the test, is understand that there are certain things the computer is looking for, with which the human grader is most likely to agree.
First, write as much as you can. The computer is looking for certain elements in an essay, and the longer your essay is, the more likely the machine is to find it. And also, more writing means more evidence to support your contentions.
Next, remember your trigger words/phrases:
Therefore, However, As a result, and the like, which highlight the points you are making. Also, remember to make your statements in parallel. I might says something like
'The writer contends that chunky peanut butter is the best because he likes the texture, however he has not considered that other people might find chunky peanut butter like eating gravel, and so dislike that type. Therefore, the claim that chunky peanut butter is always better than creamy is not a valid statement.'
After that, you want to be comfortable in your essay. The more conversation you can make it, while still addressing the topic, the smoother it will flow, and the more likely the human grader will find it appealing.
With those thoughts in mind, do you have any ideas what happened with your essays?