Table A-7. Imputation for nonresponse in doctorate-granting institutions, by field and graduate enrollment, postdoctorate, or doctorate nonfaculty researcher status: 2012–14
Year and field
Organizational units in universe
Total in survey
Number imputed
Imputation rate (%)
Full-time student
Part-time student
Post-doctorate
Doctorate nonfaculty researchers
Full-time student
Part-time student
Post-doctorate
Doctorate nonfaculty researchers
Full-time student
Part-time student
Post-doctorate
Doctorate nonfaculty researchers
Fall 2014new, all surveyed fieldsa
13,140
452,801
136,151
63,446
23,642
4,553
2,232
2,055
2,290
1.0
1.6
3.2
9.7
Science and engineering
10,271
414,209
120,220
44,496
17,368
3,971
1,821
1,070
1,669
1.0
1.5
2.4
9.6
Science
8,365
294,446
83,625
37,195
14,632
3,278
1,492
951
1,417
1.1
1.8
2.6
9.7
Agricultural sciences
489
11,509
4,558
1,394
613
75
4
19
34
0.7
0.1
1.4
5.5
Biological sciences
2,418
60,861
10,602
19,505
6,833
451
90
506
639
0.7
0.8
2.6
9.4
Communication
200
6,661
3,167
75
31
61
85
2
0
0.9
2.7
2.7
0.0
Computer sciences
470
43,937
16,992
831
445
178
65
31
36
0.4
0.4
3.7
8.1
Earth, atmospheric, and ocean sciences
436
11,990
2,645
2,049
1,498
32
23
33
276
0.3
0.9
1.6
18.4
Family and consumer sciences and human sciences
105
2,347
1,414
114
59
11
1
6
1
0.5
0.1
5.3
1.7
Mathematics and statistics
461
19,537
4,105
956
221
15
5
30
23
0.1
0.1
3.1
10.4
Multidisciplinary and interdisciplinary studies
396
4,291
1,790
1,044
658
134
219
6
141
3.1
12.2
0.6
21.4
Neurobiology and neuroscience
193
4,665
186
1,876
665
44
0
24
57
0.9
0.0
1.3
8.6
Physical sciences
685
35,762
3,553
7,241
2,432
49
88
204
117
0.1
2.5
2.8
4.8
Psychology
660
28,322
9,391
1,060
410
650
293
45
18
2.3
3.1
4.2
4.4
Social sciences
1,852
64,564
25,222
1,050
767
1,578
619
45
75
2.4
2.5
4.3
9.8
Engineering
1,906
119,763
36,595
7,301
2,736
693
329
119
252
0.6
0.9
1.6
9.2
Aerospace engineering
62
3,856
1,169
220
43
0
0
8
0
0.0
0.0
3.6
0.0
Agricultural engineering
41
1,412
328
150
55
0
0
0
3
0.0
0.0
0.0
5.5
Architecture
51
1,568
221
14
5
0
0
0
2
0.0
0.0
0.0
40.0
Biomedical engineering
154
8,246
1,128
1,196
322
132
13
11
32
1.6
1.2
0.9
9.9
Chemical engineering
149
8,587
1,193
1,244
276
0
0
2
29
0.0
0.0
0.2
10.5
Civil engineering
257
14,660
4,771
628
310
17
9
10
30
0.1
0.2
1.6
9.7
Electrical engineering
301
37,406
10,840
1,179
459
408
213
33
35
1.1
2.0
2.8
7.6
Engineering science, mechanics, and physics
61
1,541
582
270
192
0
0
1
11
0.0
0.0
0.4
5.7
Industrial and manufacturing engineering
155
8,573
5,386
131
90
0
0
7
23
0.0
0.0
5.3
25.6
Mechanical engineering
216
18,488
6,020
1,055
438
30
77
15
63
0.2
1.3
1.4
14.4
Metallurgical and materials engineering
156
6,603
856
780
273
104
5
4
9
1.6
0.6
0.5
3.3
Mining engineering
20
307
89
15
8
0
0
0
0
0.0
0.0
0.0
0.0
Nuclear engineering
29
1,201
266
112
34
0
0
1
2
0.0
0.0
0.9
5.9
Petroleum engineering
22
1,662
394
66
63
0
0
0
0
0.0
0.0
0.0
0.0
Engineering nec
232
5,653
3,352
241
168
2
12
27
13
0.0
0.4
11.2
7.7
Health
2,869
38,592
15,931
18,950
6,274
582
411
985
621
1.5
2.6
5.2
9.9
Clinical medicine
1,978
15,706
7,889
16,208
5,096
184
325
844
527
1.2
4.1
5.2
10.3
Other health
891
22,886
8,042
2,742
1,178
398
86
141
94
1.7
1.1
5.1
8.0
Fall 2014old, all surveyed fieldsa
12,985
451,884
136,716
62,259
23,235
4,524
2,074
2,049
2,290
1.0
1.5
3.3
9.9
Science and engineering
10,136
412,683
120,243
43,364
16,980
3,942
1,798
1,064
1,669
1.0
1.5
2.5
9.8
Science
8,252
294,413
84,023
36,076
14,245
3,269
1,469
950
1,417
1.1
1.7
2.6
9.9
Agricultural sciences
484
11,463
4,512
1,387
606
75
4
19
34
0.7
0.1
1.4
5.6
Biological sciences
2,388
60,212
10,490
18,705
6,484
451
90
506
639
0.7
0.9
2.7
9.9
Communication
194
6,552
3,140
75
31
61
85
2
0
0.9
2.7
2.7
0.0
Computer sciences
451
42,254
16,224
830
445
178
65
31
36
0.4
0.4
3.7
8.1
Earth, atmospheric, and ocean sciences
432
11,966
2,545
2,049
1,498
23
0
33
276
0.2
0.0
1.6
18.4
Family and consumer sciences and human sciences
104
2,347
1,414
93
57
11
1
6
1
0.5
0.1
6.5
1.8
Mathematics and statistics
455
19,475
3,990
953
221
15
5
30
23
0.1
0.1
3.1
10.4
Multidisciplinary and interdisciplinary studies
391
4,009
1,790
1,044
658
134
219
6
141
3.3
12.2
0.6
21.4
Neurobiology and neuroscience
190
4,665
186
1,776
649
44
0
24
57
0.9
0.0
1.4
8.8
Physical sciences
680
35,688
3,536
7,058
2,420
49
88
204
117
0.1
2.5
2.9
4.8
Psychology
649
30,884
10,194
1,057
410
650
293
44
18
2.1
2.9
4.2
4.4
Social sciences
1,834
64,898
26,002
1,049
766
1,578
619
45
75
2.4
2.4
4.3
9.8
Engineering
1,884
118,270
36,220
7,288
2,735
673
329
114
252
0.6
0.9
1.6
9.2
Aerospace engineering
62
3,856
1,169
220
43
0
0
8
0
0.0
0.0
3.6
0.0
Agricultural engineering
40
1,389
328
146
55
0
0
0
3
0.0
0.0
0.0
5.5
Architecture
50
1,565
221
14
5
0
0
0
2
0.0
0.0
0.0
40.0
Biomedical engineering
154
8,246
1,128
1,196
322
132
13
11
32
1.6
1.2
0.9
9.9
Chemical engineering
148
8,580
1,183
1,244
276
0
0
2
29
0.0
0.0
0.2
10.5
Civil engineering
256
14,651
4,766
628
310
17
9
10
30
0.1
0.2
1.6
9.7
Electrical engineering
290
36,044
10,490
1,177
459
408
213
32
35
1.1
2.0
2.7
7.6
Engineering science, mechanics, and physics
61
1,541
582
270
192
0
0
1
11
0.0
0.0
0.4
5.7
Industrial and manufacturing engineering
155
8,573
5,386
131
90
0
0
7
23
0.0
0.0
5.3
25.6
Mechanical engineering
213
18,440
6,014
1,052
437
30
77
15
63
0.2
1.3
1.4
14.4
Metallurgical and materials engineering
152
6,562
852
776
273
84
5
0
9
1.3
0.6
0.0
3.3
Mining engineering
20
307
89
15
8
0
0
0
0
0.0
0.0
0.0
0.0
Nuclear engineering
29
1,201
266
112
34
0
0
1
2
0.0
0.0
0.9
5.9
Petroleum engineering
22
1,662
394
66
63
0
0
0
0
0.0
0.0
0.0
0.0
Engineering nec
232
5,653
3,352
241
168
2
12
27
13
0.0
0.4
11.2
7.7
Health
2,849
39,201
16,473
18,895
6,255
582
276
985
621
1.5
1.7
5.2
9.9
Clinical medicine
1,973
16,425
8,526
16,160
5,082
184
190
844
527
1.1
2.2
5.2
10.4
Other health
876
22,776
7,947
2,735
1,173
398
86
141
94
1.7
1.1
5.2
8.0
Fall 2013, all surveyed fields
12,607
439,950
134,054
61,824
22,397
5,424
1,755
2,440
2,103
1.2
1.3
3.9
9.4
Science and engineering
9,905
400,213
118,675
43,283
16,365
4,916
1,611
1,286
1,314
1.2
1.4
3.0
8.0
Science
8,049
288,494
83,619
36,179
13,880
3,601
947
1,114
1,099
1.2
1.1
3.1
7.9
Agricultural sciences
465
11,034
4,366
1,311
544
0
0
22
21
0.0
0.0
1.7
3.9
Biological sciences
2,353
60,848
10,339
19,311
6,515
779
134
639
407
1.3
1.3
3.3
6.2
Communication
193
6,383
2,839
76
34
15
0
2
3
0.2
0.0
2.6
8.8
Computer sciences
434
35,297
14,428
761
458
709
298
26
23
2.0
2.1
3.4
5.0
Earth, atmospheric, and ocean sciences
419
11,943
2,963
2,023
1,509
416
99
68
297
3.5
3.3
3.4
19.7
Family and consumer sciences and human sciences
102
2,347
1,297
90
43
0
0
0
0
0.0
0.0
0.0
0.0
Mathematics and statistics
444
18,696
4,092
931
224
152
36
26
26
0.8
0.9
2.8
11.6
Multidisciplinary and interdisciplinary studies
348
3,690
1,702
889
537
0
0
0
125
0.0
0.0
0.0
23.3
Neurobiology and neuroscience
184
4,575
185
1,693
417
0
0
45
25
0.0
0.0
2.7
6.0
Physical sciences
673
35,424
3,520
7,157
2,302
137
2
211
97
0.4
0.1
2.9
4.2
Psychology
642
32,194
11,085
1,000
448
219
58
42
19
0.7
0.5
4.2
4.2
Social sciences
1,792
66,063
26,803
937
849
1,174
320
33
56
1.8
1.2
3.5
6.6
Engineering
1,856
111,719
35,056
7,104
2,485
1,315
664
172
215
1.2
1.9
2.4
8.7
Aerospace engineering
64
3,857
1,244
202
40
130
73
8
0
3.4
5.9
4.0
0.0
Agricultural engineering
42
1,256
386
152
50
0
0
0
2
0.0
0.0
0.0
4.0
Architecture
55
1,919
231
17
10
98
8
0
6
5.1
3.5
0.0
60.0
Biomedical engineering
146
8,015
1,043
1,103
238
1
0
3
32
0.0
0.0
0.3
13.4
Chemical engineering
147
8,490
1,129
1,230
264
0
0
25
28
0.0
0.0
2.0
10.6
Civil engineering
254
14,300
4,687
587
295
84
42
11
20
0.6
0.9
1.9
6.8
Electrical engineering
283
33,246
9,972
1,180
429
298
145
30
21
0.9
1.5
2.5
4.9
Engineering science, mechanics, and physics
59
1,540
540
240
157
41
25
12
13
2.7
4.6
5.0
8.3
Industrial and manufacturing engineering
163
7,971
5,626
133
77
481
276
4
22
6.0
4.9
3.0
28.6
Mechanical engineering
211
17,599
5,602
1,032
403
156
81
48
50
0.9
1.4
4.7
12.4
Metallurgical and materials engineering
146
6,220
857
809
267
26
14
0
7
0.4
1.6
0.0
2.6
Mining engineering
19
265
90
7
10
0
0
0
0
0.0
0.0
0.0
0.0
Nuclear engineering
28
1,169
290
105
27
0
0
1
1
0.0
0.0
1.0
3.7
Petroleum engineering
19
1,315
290
49
40
0
0
0
0
0.0
0.0
0.0
0.0
Engineering nec
220
4,557
3,069
258
178
0
0
30
13
0.0
0.0
11.6
7.3
Health
2,702
39,737
15,379
18,541
6,032
508
144
1,154
789
1.3
0.9
6.2
13.1
Clinical medicine
1,856
16,610
8,011
15,828
4,983
52
32
1,001
719
0.3
0.4
6.3
14.4
Other health
846
23,127
7,368
2,713
1,049
456
112
153
70
2.0
1.5
5.6
6.7
Fall 2012, all surveyed fields
12,567
433,177
138,401
62,764
21,872
4,659
2,073
2,598
2,269
1.1
1.5
4.1
10.4
Science and engineering
9,857
392,563
120,643
43,765
15,742
3,980
1,866
1,592
1,623
1.0
1.5
3.6
10.3
Science
7,999
285,611
85,262
36,667
13,252
2,851
1,232
1,295
1,318
1.0
1.4
3.5
9.9
Agricultural sciences
462
10,815
4,411
1,285
567
2
0
26
34
0.0
0.0
2.0
6.0
Biological sciences
2,352
61,061
9,935
20,065
6,247
589
48
698
419
1.0
0.5
3.5
6.7
Communication
186
6,175
2,756
58
14
0
0
4
2
0.0
0.0
6.9
14.3
Computer sciences
442
31,739
14,808
757
349
586
352
17
36
1.8
2.4
2.2
10.3
Earth, atmospheric, and ocean sciences
416
12,199
2,970
1,947
1,509
174
103
92
309
1.4
3.5
4.7
20.5
Family and consumer sciences and human sciences
95
2,169
1,419
58
43
0
0
3
10
0.0
0.0
5.2
23.3
Mathematics and statistics
451
18,192
4,387
900
209
120
77
47
18
0.7
1.8
5.2
8.6
Multidisciplinary and interdisciplinary studies
340
3,807
1,743
741
497
76
1
3
167
2.0
0.1
0.4
33.6
Neurobiology and neuroscience
165
4,333
214
1,524
356
0
0
27
34
0.0
0.0
1.8
9.6
Physical sciences
679
35,282
3,555
7,408
2,294
28
10
270
182
0.1
0.3
3.6
7.9
Psychology
663
32,830
11,622
1,126
430
262
69
93
39
0.8
0.6
8.3
9.1
Social sciences
1,748
67,009
27,442
798
737
1,014
572
15
68
1.5
2.1
1.9
9.2
Engineering
1,858
106,952
35,381
7,098
2,490
1,129
634
297
305
1.1
1.8
4.2
12.2
Aerospace engineering
61
3,767
1,219
170
49
138
77
6
0
3.7
6.3
3.5
0.0
Agricultural engineering
41
1,250
294
133
65
0
0
6
2
0.0
0.0
4.5
3.1
Architecture
55
2,037
303
6
11
0
0
1
5
0.0
0.0
16.7
45.5
Biomedical engineering
141
7,931
1,154
1,161
295
0
0
11
37
0.0
0.0
0.9
12.5
Chemical engineering
148
8,014
1,128
1,098
211
0
0
27
32
0.0
0.0
2.5
15.2
Civil engineering
253
14,117
4,693
589
298
0
0
19
47
0.0
0.0
3.2
15.8
Electrical engineering
285
30,528
9,862
1,152
405
306
153
47
43
1.0
1.6
4.1
10.6
Engineering science, mechanics, and physics
61
1,673
500
292
170
43
24
0
11
2.6
4.8
0.0
6.5
Industrial and manufacturing engineering
163
7,744
5,831
127
70
476
286
1
14
6.1
4.9
0.8
20.0
Mechanical engineering
212
16,701
5,527
983
389
140
80
89
91
0.8
1.4
9.1
23.4
Metallurgical and materials engineering
144
6,088
829
852
238
26
14
26
9
0.4
1.7
3.1
3.8
Mining engineering
18
240
115
5
10
0
0
1
0
0.0
0.0
20.0
0.0
Nuclear engineering
28
1,162
351
120
30
0
0
9
1
0.0
0.0
7.5
3.3
Petroleum engineering
19
1,287
233
53
40
0
0
0
0
0.0
0.0
0.0
0.0
Engineering nec
229
4,413
3,342
357
209
0
0
54
13
0.0
0.0
15.1
6.2
Health
2,710
40,614
17,758
18,999
6,130
679
207
1,006
646
1.7
1.2
5.3
10.5
Clinical medicine
1,859
16,645
8,690
16,356
5,070
481
123
873
567
2.9
1.4
5.3
11.2
Other health
851
23,969
9,068
2,643
1,060
198
84
133
79
0.8
0.9
5.0
7.5