Talk with current students about their perception of the program quality. Private is more expensive. If not, find out about the Academic Common Market in the Ready-Reference section. If you are entering a field where this is a factor, be sure the program will fulfill the necessary requirements. Licensure is the legal status granted to an individual by the state.
Requirements vary by specialty and by state.
In most states, in order to present yourself as a counselor, lawyer, doctor, etc., you must be licensed. Certification is a credential issued by a credentialing entity to an individual. It shows that some minimum standard of training and education for your profession has been met. Make sure you know what you're getting into. Ask students about their experiences in the program.