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Table A-1. Changes in the organizational unit listing: 2009–16

Activity 2009 2010 2011 2012 2013 2014olda 2014newa 2015 2016b
Units at start of data collection 13,166 13,285 13,711 13,785 13,952 14,019 14,019 14,845 15,202
Units added 743 1,039 959 726 620 782 1,275 774 1,611
Units deleted 624 613 885 559 553 432 449 417 960
Units at end of data collection 13,285 13,711 13,785 13,952 14,019 14,369 14,845 15,202 15,853
Net difference 119 426 74 167 67 350 826 357 651
a In 2014, the survey frame was updated following a comprehensive frame evaluation study. The study identified potentially eligible but not previously surveyed academic institutions in the United States with master's- or doctorate-granting programs in science, engineering, or health. A total of 151 newly eligible institutions were added, and two private for-profit institutions offering mostly practitioner-based graduate degrees were determined to be ineligible.
b The 2016 survey included a pilot data collection to assess the feasibility of several data collection changes, including the use of Classification of Instructional Programs (CIP) codes for reporting data and file uploads for transmitting data. The number of units added and deleted by coordinators responding to the pilot survey was much greater than is typical. These increases are largely due to how data are organized in institutional information systems and the increased granularity of CIP codes relative to Survey of Graduate Students and Postdoctorates in Science and Engineering (GSS) codes, rather than a reflection of increased organizational complexity.
SOURCE: National Science Foundation, National Center for Science and Engineering Statistics, Survey of Graduate Students and Postdoctorates in Science and Engineering.