The following is a brief description of the assumptions and restrictions used to extract information from the individual data files.


The specialties list used in the SED for identifying doctoral fields in Science and Engineering (S&E) consists of the following major categories:

  • Agricultural Sciences

  • Biological Sciences

  • Health Sciences

  • Engineering

  • Computer and Information Sciences

  • Mathematics

  • Physical Sciences

  • Astronomy

  • Atmospheric Sciences and Meteorology

  • Chemistry

  • Geological & Related Sciences

  • Physics

  • Psychology

  • Miscellaneous Physical Sciences

  • Social Sciences

For the purpose of this guide these names were used to identify fields or they were combined as follows:

  • Life Sciences (Agricultural Sciences, Biological Sciences, Health Sciences)

  • Engineering

  • Mathematical Sciences (Computer and Information Sciences, Mathematics)

  • Earth, Atmospheric, and Ocean Sciences (Atmospheric Sciences and

  • Physics and Astronomy (Physics, Astronomy) Meteorology, Geological & Related Sciences, Miscellaneous Physical Sciences [except Other Physical Sciences])

  • Chemistry

  • Social and Behavioral Sciences (Psychology, Social Sciences)

All doctorates were selected independent of citizenship in determining the number of doctorates by field and in identifying postdoctoral plans in Table B-11. Only those doctorates who indicated that they have accepted a postdoctoral position or are negotiating with a specific organization were selected.

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