You are a Full-Year Resident if your legal residence (not living on campus) is in Massachusetts and you spend more than 183 days, in the aggregate, in Massachusetts. If you fit this description, you should file a Massachusetts Resident Income Tax Return, Form 1. You can also access the instruction booklet electronically.
You are a Non-resident if you do not fit the above description. If you need to file a Massachusetts state tax return, you should use the Form 1-NR/PY. You can also access the instruction booklet electronically.
In addition to income tax, the state of Massachusetts requires that residents submit proof of health insurance coverage with their state tax forms. This proof is known as the Schedule HC form, and can be filled out with information supplied by your health insurance provider, usually the 1099HC. If your health care provider has not sent you health insurance information you can call them and request their Federal ID Number, because you have all the other information needed (subscriber number, health insurance provider name, months you were covered, etc).
Visit the Massachusetts Department of Revenue if you are interested in learning more about the Massachusetts State Tax.