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A new study by Bankrate.com ranks 20 popular professions according to the return on investment after receiving a degree in the specified field.

The ranking takes into account the median pay of the profession, as well as the cost of the necessary degree to determine the amount of time an employee in that field will likely take to pay back their student loans.

20 Marriage and family therapist
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Minimum required years in college, graduate school and professional programs: 6



Cost of degree (tuition, fees, room, board):$68,010



Median pay: $46,670



Annual repayment (if 10 percent of salary goes to repaying school loans): $4,667



Years needed to repay education investment (assuming 6 percent student loan interest): 34.67

19 News analyst, reporter, correspondent
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Minimum required years in college, graduate school and professional programs: 4



Cost of degree (tuition, fees, room, board): $52,596



Median pay: $37,090



Annual repayment (if 10 percent of salary goes to repaying school loans): $3,709



Years needed to repay education investment (assuming 6 percent student loan interest): 31.83

18 Veterinarian
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Minimum required years in college, graduate school and professional programs: 8



Cost of degree (tuition, fees, room, board): $114,268



Median pay: $84,460



Annual repayment (if 10 percent of salary goes to repaying school loans): $8,446



Years needed to repay education investment (assuming 6 percent student loan interest): 27.92

17 Teacher (full-time)
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Minimum required years in college, graduate school and professional programs: 4



Cost of degree (tuition, fees, room, board): $52,596



Median pay: $43,400



Annual repayment (if 10 percent of salary goes to repaying school loans): $4,340



Years needed to repay education investment (assuming 6 percent student loan interest): 21.75

16 Librarian
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Minimum required years in college, graduate school and professional programs: 6



Cost of degree (tuition, fees, room, board): $68,010



Median pay: $55,370



Annual repayment (if 10 percent of salary goes to repaying school loans): $5,537



Years needed to repay education investment (assuming 6 percent student loan interest): 22.33

15 Zoologist, wildlife biologist
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Minimum required years in college, graduate school and professional programs: 6



Cost of degree (tuition, fees, room, board): $68,010



Median pay: $57,710



Annual repayment (if 10 percent of salary goes to repaying school loans): $5,771



Years needed to repay education investment (assuming 6 percent student loan interest): 20.58

14 English language/literature teacher: post-secondary
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Minimum required years in college, graduate school and professional programs: 6



Cost of degree (tuition, fees, room, board): $68,010



Median pay: $60,040



Annual repayment (if 10 percent of salary goes to repaying school loans): $6,004



Years needed to repay education investment (assuming 6 percent student loan interest): 19.08

13 Public relations specialist
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Minimum required years in college, graduate school and professional programs: 4



Cost of degree (tuition, fees, room, board): $52,596



Median pay: $54,170



Annual repayment (if 10 percent of salary goes to repaying school loans): $5,417



Years needed to repay education investment (assuming 6 percent student loan interest): 14.67

12 Political science teacher: post-secondary
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Minimum required years in college, graduate school and professional programs: 6



Cost of degree (tuition, fees, room, board): $68,010



Median pay: $72,170



Annual repayment (if 10 percent of salary goes to repaying school loans): $7,217



Years needed to repay education investment (assuming 6 percent student loan interest): 14.00

11 Dentist
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Minimum required years in college, graduate school and professional programs: 8



Cost of degree (tuition, fees, room, board): $139,298



Median pay: $149,310



Annual repayment (if 10 percent of salary goes to repaying school loans): $14,931



Years needed to repay education investment (assuming 6 percent student loan interest): 13.75

10 Lawyer
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Minimum required years in college, graduate school and professional programs: 7



Cost of degree (tuition, fees, room, board): $103,677



Median pay: $113,530



Annual repayment (if 10 percent of salary goes to repaying school loans): $11,353



Years needed to repay education investment (assuming 6 percent student loan interest): 13.33

9 Market research analyst
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Minimum required years in college, graduate school and professional programs: 4



Cost of degree (tuition, fees, room, board): $52,596



Median pay: $60,300



Annual repayment (if 10 percent of salary goes to repaying school loans): $6,030



Years needed to repay education investment (assuming 6 percent student loan interest): 12.42

8 Accountant
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Minimum required years in college, graduate school and professional programs: 4



Cost of degree (tuition, fees, room, board): $52,596



Median pay: $63,550



Annual repayment (if 10 percent of salary goes to repaying school loans): $6,355



Years needed to repay education investment (assuming 6 percent student loan interest): 11.50

7 Physician: family or general practicioner
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Minimum required years in college, graduate school and professional programs: 8



Cost of degree (tuition, fees, room, board): $136,861



Median pay: $172,020



Annual repayment (if 10 percent of salary goes to repaying school loans): $17,202



Years needed to repay education investment (assuming 6 percent student loan interest): 10.92

6 Microbiologist
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Minimum required years in college, graduate school and professional programs: 4



Cost of degree (tuition, fees, room, board): $52,596



Median pay: $66,260



Annual repayment (if 10 percent of salary goes to repaying school loans): $6,626



Years needed to repay education investment (assuming 6 percent student loan interest): 10.83

5 Pharmacist
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Minimum required years in college, graduate school and professional programs: 7



Cost of degree (tuition, fees, room, board): $92,421



Median pay: $116,670



Annual repayment (if 10 percent of salary goes to repaying school loans): $11,667



Years needed to repay education investment (assuming 6 percent student loan interest): 10.83

4 Political scientist
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Minimum required years in college, graduate school and professional programs: 6



Cost of degree (tuition, fees, room, board): $68,010



Median pay: $102,000



Annual repayment (if 10 percent of salary goes to repaying school loans): $10,200



Years needed to repay education investment (assuming 6 percent student loan interest): 8.58

3 Civil engineer
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Minimum required years in college, graduate school and professional programs: 4



Cost of degree (tuition, fees, room, board): $52,596



Median pay: $79,340



Annual repayment (if 10 percent of salary goes to repaying school loans): $7,934



Years needed to repay education investment (assuming 6 percent student loan interest): 8.50

2 Economist
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Minimum required years in college, graduate school and professional programs: 4



Cost of degree (tuition, fees, room, board): $52,596



Median pay: $91,860



Annual repayment (if 10 percent of salary goes to repaying school loans): $9,186



Years needed to repay education investment (assuming 6 percent student loan interest): 7.08

1 Advertising, marketing, promotions
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Minimum required years in college, graduate school and professional programs: 4



Cost of degree (tuition, fees, room, board): $52,596



Median pay: $107,950



Annual repayment (if 10 percent of salary goes to repaying school loans): $10,795



Years needed to repay education investment (assuming 6 percent student loan interest): 5.83