The New York Times posted a chart that compares return on investment (R.O.I.) for professionals with a bachelor's and graduate degree by field or discipline. Meanwhile, there's another article arguing whether or not the Master's has become the New Bachelor's.
The median earnings for full-time workers with a bachelor's degree in education, social work, psychology was $42,000. With a graduate degree, that increases to $57,000 in education and $60,000 in social work and psychology. In the helping professions, a master's degree is almost necessary for entry-level wages and administrative responsibilities. The second chart below focuses on the postgraduate population by gender in the United States. Men are more likely to work in management, while women are clustered in the teaching and helping professions.