[資訊] 取得(美國)博士學位所需時間
Time to Degree of U.S. Research Doctorate Recipients
http://www.nsf.gov/statistics/infbrief/nsf06312/
http://www.nsf.gov/statistics/infbrief/nsf06312/fig1.gif
For the 2003 doctorate recipients, the median total time from baccalaureate
to doctorate was 10.1 years, while the median registered time was 7.5 years
and the median age at doctorate was 33.3 years. The trend for the total
time-to-degree measure shows a slight increase from 1978 to 1996, followed by
a slight decline through 2003. A similar pattern, albeit with a peak in 1993
instead of 1996, is apparent for median age at doctorate. In contrast, the
registered time to degree increased up to 1998, leveling off at 7.5 years
from 1998 to 2003.
Doctorate Recipients from U.S. Universities: Summary Report 2007-08
http://www.nsf.gov/statistics/nsf10309/
http://www.nsf.gov/statistics/nsf10309/content.cfm?pub_id=3996&id=8#tab18
Field of study and time to degree 2008
All fields Median number of years
Since baccalaureate 9.4
Since starting graduate school 7.7
Life sciences
Since baccalaureate 8.6
Since starting graduate school 6.9
Physical sciences
Since baccalaureate 7.7
Since starting graduate school 6.7
Social sciences
Since baccalaureate 9.6
Since starting graduate school 7.7
Engineering
Since baccalaureate 7.9
Since starting graduate school 6.7
Education
Since baccalaureate 17.0
Since starting graduate school 12.7
Humanities
Since baccalaureate 11.3
Since starting graduate school 9.3
Other fields
Since baccalaureate 12.1
Since starting graduate school 9.3
．Asians earned 2,543 research doctorates in 2008, more than members of any
other U.S. racial/ethnic minority group (table 8).
．Of graduates with known citizenship status, 67% were U.S. citizens or
permanent residents and 33% were non-U.S. citizen temporary visa holders
(table 11).
．China (including Hong Kong) was the country of origin for the largest number
of non-U.S. graduates in 2008, with 4,526 (table 12).
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