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TABLE A-5. Imputation for nonresponse in doctorate-granting institutions, by field and graduate enrollment or postdoctoral status: 2007–09
Total in survey
Organizational
Number imputed
Imputation rate (%)
units in
Full-time
Part-time
Post-
Full-time
Part-time
Post-
Full-time
Part-time
Post-
universe
student
student
doctorate
student
student
doctorate
student
student
doctorate
Health fieldsa
11,865
453
2,227
156
422
388
81
450
226
84
640
662
1,646
1,756
2,674
428,856
10,246
59,235
5,429
29,669
11,211
1,903
16,328
3,420
2,261
33,671
34,585
67,116
101,495
52,287
145,027
3,864
9,345
2,522
15,924
2,731
1,181
4,199
2,091
55
3,427
11,979
28,109
35,227
24,373
57,714
1,080
20,125
38
591
1,420
22
737
458
642
7,424
1,209
560
6,411
16,997
5,209
0
628
23
695
177
0
10
0
0
53
358
1,255
1,358
652
2,396
0
164
2
465
108
0
17
0
0
28
109
304
582
617
1,066
11
307
0
18
34
0
2
0
0
106
121
3
121
343
1.2
0.0
1.1
0.4
2.3
1.6
0.0
0.1
0.0
0.0
0.2
1.0
1.9
1.3
1.2
1.7
0.0
1.8
0.1
2.9
4.0
0.0
0.4
0.0
0.0
0.8
0.9
1.1
1.7
2.5
1.8
1.0
1.5
0.0
3.0
2.4
0.0
0.3
0.0
0.0
1.4
10.0
0.5
1.9
2.0
Fall 2008, all fields
11,773
422,287
151,954
54,087
4,434
2,034
1,560
1.0
1.3
2.9
438
2,175
142
417
387
71
447
191
63
627
685
1,629
1,736
2,765
9,564
58,501
4,642
28,850
10,874
1,754
15,636
2,818
1,908
32,747
35,866
64,107
95,077
59,943
3,535
9,698
2,388
15,321
2,789
1,253
4,086
1,868
72
3,573
12,561
27,577
35,646
31,587
1,146
19,794
32
490
1,335
19
723
348
343
6,872
1,070
506
5,457
15,952
11
450
0
633
177
0
9
0
0
65
648
273
1,229
939
7
88
0
409
73
0
5
0
0
13
235
64
915
225
22
826
0
10
30
0
5
0
14
135
141
11
76
290
0.1
0.8
0.0
2.2
1.6
0.0
0.1
0.0
0.0
0.2
1.8
0.4
1.3
1.6
0.2
0.9
0.0
2.7
2.6
0.0
0.1
0.0
0.0
0.4
1.9
0.2
2.6
0.7
1.9
4.2
0.0
2.0
2.2
0.0
0.7
0.0
4.1
2.0
13.2
2.2
1.4
1.8
11,210
393
2,092
119
401
374
61
418
117
44
608
409,421
9,276
58,327
4,049
27,874
10,570
1,489
15,013
2,076
1,529
32,327
151,931
3,272
9,180
1,977
15,681
2,789
1,002
4,167
1,617
32
3,441
50,785
985
19,095
30
453
1,249
8
624
244
285
6,701
7,762
168
1,335
0
502
305
0
148
1
0
159
3,534
114
272
1
194
92
0
151
6
0
58
2,796
1
532
0
2
29
0
2
0
0
72
1.9
1.8
2.3
0.0
1.8
2.9
0.0
1.0
*
0.0
0.5
2.3
3.5
3.0
0.1
1.2
3.3
0.0
3.6
0.4
0.0
1.7
5.5
0.1
2.8
0.0
0.4
2.3
0.0
0.3
0.0
0.0
1.1
Year and field
Fall 2009, all fields
Agricultural sciences
Biological sciences
Communicationa
Computer sciences
Earth, atmospheric, and ocean sciences
Family and consumer sciences/human sciencesa
Mathematical sciences
Multidisciplinary/interdisciplinary studiesa
Neurosciencea
Physical sciences
Psychology
Social sciences
Engineering
Agricultural sciences
Biological sciences
Communicationa
Computer sciences
Earth, atmospheric, and ocean sciences
Family and consumer sciences/human sciencesa
Mathematical sciences
Multidisciplinary/interdisciplinary studiesa
Neurosciencea
Physical sciences
Psychology
Social sciences
Engineering
Health fieldsa
Fall 2007new, all fields
Agricultural sciences
Biological sciences
Communicationa
Computer sciences
Earth, atmospheric, and ocean sciences
Family and consumer sciences/human sciencesa
Mathematical sciences
Multidisciplinary/interdisciplinary studiesa
Neurosciencea
Physical sciences
TABLE A-5. Imputation for nonresponse in doctorate-granting institutions, by field and graduate enrollment or postdoctoral status: 2007–09
Total in survey
Organizational
Year and field
Psychology
Social sciences
Engineering
Health fieldsa
Fall 2007old, all fields
Agricultural sciences
Biological sciences
Number imputed
Imputation rate (%)
units in
Full-time
Part-time
Post-
Full-time
Part-time
Post-
Full-time
Part-time
Post-
universe
student
student
doctorate
student
student
doctorate
student
student
doctorate
657
1,556
1,676
2,694
34,286
62,406
90,911
59,288
13,820
28,894
33,512
32,547
1,079
482
4,937
14,613
1,573
738
954
1,879
848
512
334
952
3
7
9
2,139
4.6
1.2
1.0
3.2
6.1
1.8
1.0
2.9
0.3
1.5
0.2
14.6
10,976
388
2,101
403,722
9,103
58,011
148,110
3,182
9,256
50,657
948
19,204
7,761
190
1,313
3,527
119
267
2,796
1
507
1.9
2.1
2.3
2.4
3.7
2.9
5.5
0.1
2.6
Computer sciences
409
28,285
15,781
513
502
194
2
1.8
1.2
0.4
Earth, atmospheric, and ocean sciences
382
10,973
2,839
1,321
305
92
29
2.8
3.2
2.2
Mathematical sciences
424
15,311
4,229
621
148
151
3
1.0
3.6
0.5
Physical sciences
610
32,548
3,488
6,742
159
58
72
0.5
1.7
1.1
Psychology
669
34,801
13,972
1,097
1,573
848
3
4.5
6.1
0.3
Social sciences
1,588
63,564
29,319
494
738
512
7
1.2
1.7
1.4
Engineering
1,664
89,834
33,435
4,903
954
334
8
1.1
1.0
0.2
2,741
61,292
32,609
14,814
1,879
952
2,164
3.1
2.9
14.6
Health fieldsa
* = imputation rate < 0.05%.
a
In 2007, GSS-eligible fields were reclassified, newly eligible fields were added, and survey was redesigned to improve coverage and coding of GSS-eligible units. "2007new" presents data as
collected in 2007; "2007old" reflects data as they would have been collected under 2006 methodology. Science fields "communication" and "family and consumer sciences/human sciences" are
newly eligible. Data for these two fields are only in 2007new. Science field "multidisciplinary/interdisciplinary studies" is also newly eligible; these data may have been reported under other fields
before 2007. "Neuroscience" is reported as a separate field of science in 2007new; these data were reported under health field "neurology" in 2007old and previous years. See appendix A,
"Technical Notes," for more details.
SOURCE: National Science Foundation/National Center for Science and Engineering Statistics, NSF-NIH Survey of Graduate Students and Postdoctorates in Science and Engineering.
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