Table 1. Description of the 1993–2013...

Table 1.

Description of the 1993–2013 NSF SDR sample

Variable	Social sciences		STEM
Variable	n	(%)	n	(%)
Gender
Male	1,026	52.6	8,094	81.1
Female	923	47.4	1,886	18.9
Race/ethnicity
White	1,183	60.7	5,671	56.8
Asian	303	15.5	2,783	27.9
URM	463	23.8	1,526	15.3
Citizenship
US citizen or permanent resident	1,692	86.8	7,498	75.1
Temporary resident	257	13.2	2,482	24.9
Major
Anthropology	269	13.8
Economics	500	25.7
Geography	87	4.5
Linguistics	124	6.4
Political science	348	17.9
Public policy	90	4.6
Resources/agricultural econ	73	3.7
Sociology	458	23.5
Engineering			5,126	51.4
Computer science			718	7.2
Math			752	7.5
Physical science			3,384	33.9
Primary financial support
Savings/earnings	486	24.9	1,161	11.6
Fellowship/grant	400	20.5	1,186	11.9
Research assistantship	229	11.7	4,231	42.4
Teaching assistantship	495	25.4	1,460	14.6
Other support	339	17.4	1,942	19.5
Graduation term
Spring/Summer	1, 136	58.3	5,493	55
Fall	502	25.8	2,882	28.9
Other	311	16	1,605	16.1
NRC program ranking
Top ranked	286	14.7	1,885	18.9
Mid ranked	1,464	75.1	7,178	71.9
Not ranked	199	10.2	917	9.2
Father’s education level
High school or unknown	871	44.7	4,450	44.6
Bachelor’s degree	380	19.5	2,334	23.4
Graduate degree	698	35.8	3,196	32
Mother’s education level
High school or unknown	1,130	58	6,072	60.8
Bachelor’s degree	398	20.4	2,159	21.6
Graduate degree	421	21.6	1,749	17.5
Marital status at the time of PhD
Married	1,152	59.1	5,728	57.4
Not married	797	40.9	4,252	42.6
Dependent under age 6 at time of PhD
0	1,842	94.5	9,644	96.6
1 or more	107	5.5	336	3.4
Post-PhD
Post-PhD employment
Postdoc	242	12.4	2, 926	29.3
Non-postdoc	1,707	87.6	7, 054	70.7
Total	1,949	100	9,980	100

Variable	Social sciences		STEM
Variable	n	(%)	n	(%)
Gender
Male	1,026	52.6	8,094	81.1
Female	923	47.4	1,886	18.9
Race/ethnicity
White	1,183	60.7	5,671	56.8
Asian	303	15.5	2,783	27.9
URM	463	23.8	1,526	15.3
Citizenship
US citizen or permanent resident	1,692	86.8	7,498	75.1
Temporary resident	257	13.2	2,482	24.9
Major
Anthropology	269	13.8
Economics	500	25.7
Geography	87	4.5
Linguistics	124	6.4
Political science	348	17.9
Public policy	90	4.6
Resources/agricultural econ	73	3.7
Sociology	458	23.5
Engineering			5,126	51.4
Computer science			718	7.2
Math			752	7.5
Physical science			3,384	33.9
Primary financial support
Savings/earnings	486	24.9	1,161	11.6
Fellowship/grant	400	20.5	1,186	11.9
Research assistantship	229	11.7	4,231	42.4
Teaching assistantship	495	25.4	1,460	14.6
Other support	339	17.4	1,942	19.5
Graduation term
Spring/Summer	1, 136	58.3	5,493	55
Fall	502	25.8	2,882	28.9
Other	311	16	1,605	16.1
NRC program ranking
Top ranked	286	14.7	1,885	18.9
Mid ranked	1,464	75.1	7,178	71.9
Not ranked	199	10.2	917	9.2
Father’s education level
High school or unknown	871	44.7	4,450	44.6
Bachelor’s degree	380	19.5	2,334	23.4
Graduate degree	698	35.8	3,196	32
Mother’s education level
High school or unknown	1,130	58	6,072	60.8
Bachelor’s degree	398	20.4	2,159	21.6
Graduate degree	421	21.6	1,749	17.5
Marital status at the time of PhD
Married	1,152	59.1	5,728	57.4
Not married	797	40.9	4,252	42.6
Dependent under age 6 at time of PhD
0	1,842	94.5	9,644	96.6
1 or more	107	5.5	336	3.4
Post-PhD
Post-PhD employment
Postdoc	242	12.4	2, 926	29.3
Non-postdoc	1,707	87.6	7, 054	70.7
Total	1,949	100	9,980	100