How many surveys are in the SESTAT data system and how do their samples fit together?
The SESTAT data system comprises three surveys sponsored by the National Science Foundation, each contributing a distinct segment of the target population. The 1993 National Survey of College Graduates (NSCG), conducted by the Bureau of the Census, contributes persons who had obtained a Bachelor’s degree or higher as of April 1, 1990 and who were either working as a scientist or engineer during the week of April 15, 1993 or who received a Bachelor’s, Masters’s, or foreign Doctorate degree in science or engineering before April 1, 1990. The 1993 National Survey of Recent College Graduates (NSRCG), conducted by Westat, Inc., contributes persons who received a Bachelor’s or Master’s degree in a science or engineering field in the United States between April 1, 1990 and June 30, 1992. The 1993 Survey of Doctorate Recipients (SDR), conducted by the National Research Council, contributes persons who received a Doctorate degree in a science or engineering field in the United States between Ja
