GMATPrep 1: 420 no improvement in RC and CR

[soniadiana2011]

Is there something that I am missing about the GMATPrep software Vs. other Prep tests? I always score 500+ in kaplan tests and recently took Manhattan GMAT free test and scored 570! However, something really wrong going on whenever I attempt GMATPrep software. Or may be there is some kind of scoring policy or the algorithm differences which actually making my score really low in GMAT software and morelikely this is what is going to happen in my actual test as well.

Anyways, I have improved in SC, but no improvement in RC or CR! What to do? Honestly I have not studied much of RC or CR as I don't know what to study and where to start? Please help me.

[Jim@StratusPrep]

The alogos for each of the companies are likely the same (CAT algos are based off of just a couple of models), but the question bank can determine how you score and it is impossible to see how good the data is for any company. Also, don't read too much into any score because there is variability.

As for RC and CR: Read for structure and ask why an answer is wrong.