Hi SITR,
The process of applying to (and ultimately attending) Business School will require a big investment of time, money and energy on your part, so you really should make sure that the Programs that you apply to match your career goals/needs. There are a variety of factors that go into selecting the Schools that you'll apply to; here are some other things to think about:
1) Is there a particular company that you want to work for or industry that you want to work in? Certain degrees are more appropriate than others if you have a specific career goal.
2) What do you want your MBA to do for you?
3) Do you want to go to School full-time or part-time?
4) Are you willing to relocate? Are you comfortable with working through a program that is primarily online?
5) Are you going to be applying for scholarships?
Etc.
It's okay if you don't have answers to any of these questions just yet, but you really should try to define all of the important variables in terms of your goals, so that you can tailor your entire approach to getting into the best School that matches what you're looking for.
While your GPA would not help your Applications, there are some ways to 'offset' it - and once you have an idea of the Schools/Programs that you are interested in, then we can discuss those options in more detail.
The scoring algorithm on the Official GMAT is far more complicated than most people realize. Since that algorithm is proprietary, no GMAT company has an exact match for it, thus CAT scores can vary a bit based on the 'biases' involved in their respective designs. A reputable practice CAT should give you a Score result - not a 'score range', so there might be some issues with the initial assessment that you referred to.
Before I can offer you the specific advice that you’re looking for, it would help if you could provide a bit more information on how you've been studying and your goals:
1) What was the source of that initial assessment? Did it include Quant and Verbal Scaled Scores?
2) When are you planning to take the GMAT?
3) When are you planning to apply to Business School?
4) Do you have a specific list of Schools/Programs that interest you?
GMAT assassins aren't born, they're made,
Rich