Grad school can make or break your career. Choose the right advanced degree, and you can skyrocket to success; choose the wrong one, and you'll rack up debt, but see little payoff. Recently, PayScale helped Fortune crunch some numbers to determine the best and worst graduate degrees out there, with potential income being the most critical factor. While there's obviously more to consider than just cost, it's important to keep in mind how much debt you're getting into – and therefore how much you'll have to make to pay it back – as average tuition for a graduate degree runs $36,000 to $63,000 a year.
Higher education in America faces a dilemma. How can we make college more accessible, make sure students learn, make sure they finish their degrees on time and still keep it affordable enough for all socioeconomic levels? At least one study suggests technology and improved accountability measures could be the answer.