Determine which test you need to take (MCAT, LSAT, GRE (8 subject tests), GMAT, Miller Analogy).
Look into test prep courses by Kaplan and The Princeton Review.
Purchase test prep books at the book store.
Try to take the tests as soon as you know you are planning to apply so you have your grades ready to submit.
You should ask 3-5 people to be a reference so you are prepared if the school needs that many. Make sure that your references know your objectives in wanting to attend the program and that they know your strengths and accomplishments.
Once you have your application give any required forms to your references for them to complete.
Make sure you give your references a copy of your resume.
Make sure to request official transcripts in plenty of time to meet deadlines
If you have transferred, have a degree or have completed courses at another school, request official copies of your transcript from them.
Complete the application
Make sure that any essays and applications are checked for typos, grammar, and spelling mistakes.
If it is far away you should be prepared to pay for the travel.
This is a place to shine to increase your chances of acceptance.
Practice makes perfect so be familiar with commonly asked questions. Use InterviewStream, a web based virtual interviewing software program available on Merrimack web site, to practice your interviewing.