The best advice I could give you: do not make ANY decisions about any aspect of applying to b-school based on a score from a practice test you took cold. You've been out of school for 6 years, so you're not going to score well without any prep. Until you learn more about the test itself, brush up on your fundamentals, and do some diligent practice, you won't really know what you can achieve.
I would strongly recommend getting a good overall review book (I used Cracking the GMAT, highly recommend), and plowing through it. There are some practice questions in the Cracking book to get your feet wet, but you'll need to get the Official Guide, 11th edition (not 10th; it's too old) for serious practice. The questions in the OG get harder as you go.
Don't take any more practice tests until you've done a good 20-25 practice questions for each type of question so you know what to expect. Then take another timed test if you want, or set up a regular schedule for studying. I like to recommend doing only practice questions during the week, one question type at a time (you get into a groove that way), checking your answers after every 5 questions or so (unless you're really having a hard time solving them, in which case check answers as you go so you don't develop bad habits). Then do a timed test each weekend.
Always review and correct, make sure you understand why particular answers are correct. If you get stuck, come here and post the question and ask for input.
I've read that the Manhattan GMAT tests are good, so definitely use those, and the official GMATPrep tests, and the tests in the Cracking book.
Starting with 600 cold, you could likely target upper 600s-700 with sufficient prep.
Don't decide now about part-time vs. full-time, especially based on potential GMAT scores. The competitive part-time programs are still tough to get into, and you should be choosing schools and PT vs. FT based on your interests, career goals, personal fit with the school, tolerance for having no income for two years, etc. Do not listen to your friends' advice on this one. An EMBA wouldn't be appropriate because they're designed for people with 10+ years of experience who are primarily staying with their companies or at least not switching careers. Plus they're amazingly expensive (companies often pay for them, so I guess the schools figure they can tolerate the ridiculous tuition). Go full-time if you can. Especially with a career switch, it will benefit you greatly, because networking opportunities are much stronger in FT programs than in PT.
Hope this helps!
I would strongly recommend getting a good overall review book (I used Cracking the GMAT, highly recommend), and plowing through it. There are some practice questions in the Cracking book to get your feet wet, but you'll need to get the Official Guide, 11th edition (not 10th; it's too old) for serious practice. The questions in the OG get harder as you go.
Don't take any more practice tests until you've done a good 20-25 practice questions for each type of question so you know what to expect. Then take another timed test if you want, or set up a regular schedule for studying. I like to recommend doing only practice questions during the week, one question type at a time (you get into a groove that way), checking your answers after every 5 questions or so (unless you're really having a hard time solving them, in which case check answers as you go so you don't develop bad habits). Then do a timed test each weekend.
Always review and correct, make sure you understand why particular answers are correct. If you get stuck, come here and post the question and ask for input.
I've read that the Manhattan GMAT tests are good, so definitely use those, and the official GMATPrep tests, and the tests in the Cracking book.
Starting with 600 cold, you could likely target upper 600s-700 with sufficient prep.
Don't decide now about part-time vs. full-time, especially based on potential GMAT scores. The competitive part-time programs are still tough to get into, and you should be choosing schools and PT vs. FT based on your interests, career goals, personal fit with the school, tolerance for having no income for two years, etc. Do not listen to your friends' advice on this one. An EMBA wouldn't be appropriate because they're designed for people with 10+ years of experience who are primarily staying with their companies or at least not switching careers. Plus they're amazingly expensive (companies often pay for them, so I guess the schools figure they can tolerate the ridiculous tuition). Go full-time if you can. Especially with a career switch, it will benefit you greatly, because networking opportunities are much stronger in FT programs than in PT.
Hope this helps!

















