TABLE 26 Reasons for Holding Postdocs for Science and Engineering Ph.D.s, by Field of Doctorate, 1995 (in percent)

 

Field of Doctorate

 

All Fields

Computer Sciences

Mathematical Sciences

Chemistry

Physics and Astronomy

Earth/Atmospheric/Marine Sciences

Agricultural/Environmental Sciences

Biological Sciences

Health Sciences

Social Sciences

Psychology

Engineering

Total Ever Holding Postdoc

182,300

*

4,800

29,400

19,600

5,700

5,900

67,900

3,500

8,900

20,800

15,200

Reason for First Postdoc

 

Additional Training in Field

46.7

*

39.8

43.4

49.0

31.8

42.1

50.0

49.6

33.7

61.8

32.5

Training Out of Field

14.8

*

9.2

17.7

9.8

5.7

9.8

18.6

16.0

18.1

10.7

9.6

Work With Specific Person or Place

21.3

*

32.2

19.2

22.5

38.9

14.9

20.7

18.2

23.2

15.0

26.1

No Other Employment Available

11.1

*

10.6

14.1

13.6

17.6

26.4

6.2

9.9

10.3

5.0

24.6

Other Reason

6.1

*

8.2

5.5

5.1

5.9

6.7

4.6

6.3

14.7

7.5

7.2

Total with Only One Postdoc

135,900

*

3,500

21,800

14,000

4,800

4,600

45,900

2,900

6,900

17,400

13,600

Reason for First Postdoc

 

Additional Training in Field

45.8

*

36.1

42.2

47.0

31.3

39.6

49.5

50.4

34.8

63.0

31.8

Training Out of Field

14.7

*

10.1

17.9

10.6

5.5

10.1

18.9

16.8

18.5

9.5

9.7

Work With Specific Person or Place

21.8

*

35.2

20.5

22.7

38.2

15.6

21.4

16.8

22.6

14.9

25.9

No Other Employment Available

11.7

*

10.8

14.5

15.2

18.3

28.0

6.2

10.1

10.2

4.5

25.1

Other Reason

6.0

*

7.8

4.8

4.5

6.6

6.7

4.1

5.9

14.0

8.1

7.5

Total With More Than One Postdoc

46,400

*

*

7,600

5,600

*

*

22,000

*

2,000

3,400

1,600

Reason for First Postdoc

 

Additional Training in Field

49.3

*

*

46.9

54.0

*

*

51.1

*

30.1

55.9

38.7

Training Out of Field

15.3

*

*

17.0

8.0

*

*

18.1

*

16.7

16.7

8.6

Work With Specific Person or Place

19.7

*

*

15.4

21.9

*

*

19.2

*

25.3

15.6

27.7

No Other Employment Available

9.3

*

*

13.1

9.6

*

*

6.2

*

10.6

7.5

20.3

Other Reason

6.5

*

*

7.6

6.5

*

*

5.5

*

17.2

4.4

4.7

Reason for Second Postdoc

 

Additional Training in Field

34.8

*

*

28.0

34.9

*

*

36.6

*

26.2

51.1

26.3

Training Out of Field

17.6

*

*

18.9

8.9

*

*

19.8

*

23.6

16.1

15.9

Work With Specific Person or Place

24.9

*

*

21.6

28.5

*

*

24.8

*

27.5

16.5

34.1

No Other Employment Available

14.3

*

*

17.5

20.2

*

*

11.5

*

7.6

11.9

21.2

Other Reason

8.4

*

*

14.0

7.5

*

*

7.3

*

15.2

4.3

2.5

*Too few cases to estimate.

SOURCE: National Research Council/National Science Foundation, Survey of Doctorate Recipients, 1995.



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