I’m studying trends in college student employment using CPS data and STATA between the years 1995-2018. To do so, I have used the svyset, subpop() commands in STATA and the weight, edsuppwt. The resulting subpopulation estimates of college enrollments are smaller than what I would expect given other data sources from the U.S. Dept. of Education. For example, my estimate of the number of (full & part-time) undergraduate students using the CPS data is much closer to the number of full-time undergraduate students reported by the DOE.
Have others also found that CPS underestimates college enrollment? I seem to recall this being possible because of the CPS focus on non-institutionalized populations, but don’t want to discount the possibility of an error on my end.
Would reweighting be a viable (or necessary) option? I am particularly concerned about interpreting employment trends, etc if I’m unable to recover relatively accurate population estimates but am new to survey analysis. Thanks!