predicting Actual scores based on prep scores

[target760]

hi guys,
i took couple of full length tests ( didnt take awa) during last seven days.First test i took was on the 17th, it was a princenton review test and i scored 40,22, 524 (Q,V, Total in tht order). One problem i faced in that particular test was that the test started with verbal and i am not very great with verbal section.secondly, by the time i reached quant thing , i was already low on confidence and concentration.
I took secnd test just a while back and scored 41,32,600 in it. It was GMAT prep test.Everything was OK in this test except that in the end i again lost concentration.
Now, i would like any of the guru's reading this post and willing to help, tell me what do i do to maintain that concentration and can these scores give me some idea of what my actual score might look like?

[mba05]

till such time a 'guru' responds, let me voice my opinion :

if thy targeting 760 - going by thy user id, u have to put lot more effort.

I suggest that u stop taking these tests for a while and focus on the questions that u got wrong. Master those areas only after that go for the next test.

all the best !