The Transition into Adulthood Supplement (TAS) has collected information about college major
(field of study) in all waves (2005-present). Because college majors can be unique and
therefore potentially identifying, detailed information about college major is made available
under restricted contract. The file contains 4,957 (2,595 + 2,362) records and 11 variables. The first five
variables in each file are the keys needed to merge with the Public Release version of the
corresponding PSID Cross-year Individual/Family file and/or the corresponding TAS Interview File.
As of TAS-2019 (2021) we have coded college major using the new code frame provided by the National Center
for Education Statistics (NCES): Classification of Instructional Programs (CIP 2010 frame). Given
the granularity of the code frame, we have provided two variables for each report of college major.
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The first variable is the first 2 digits of the CIP which is the main category
(e.g., 01=Agriculture, Agricultural Operations, and Related Sciences). The 2-digit version of
this variable is publicly available. The second corresponding variable for each report of
college major is the full CIP code, in the format XX.XXXX. This variable is suppressed and only
available for use under a restricted data use contract. Users should note that these college major
variables have character values preserving the leading zeros to match the CIP 2010 frame. The
TAS-2019 & TAS-2021 College Major
codebook
describes the restricted variables.
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