Note on the Data Used to Construct Degree-Related Indicators
The data that form the basis of these indicators are drawn from the U.S. Department
of Education’s National Center for Education Statistics’s (NCES) Higher Education
General Information System (HEGIS) and its successor, the Integrated Postsecondary
Educational Data System (IPEDS), through which institutions of higher learning report
on the numbers and characteristics of students completing degree programs (as well
as a variety of other topics; for more on this major data collection program, see
http://nces.ed.gov/ipeds/). The HEGIS/IPEDS
degree-completion data going back to 1966 have been made easily accessible to decision-makers,
researchers, and the general public by the National Science Foundation (NSF) via
its online data analysis tool
WebCASPAR. The NSF has traditionally
used the NCES data to tabulate science and engineering degree awards as part of
its
Science and Engineering Indicators Program, which since 1973 has issued a biennial report
designed to provide public and private policymakers with a broad base of quantitative
information about the U.S. science, engineering, and technology enterprise.
The NSF has developed a set of standardized disciplinary categories that can be
used across the various data sources it relies upon to construct its indicators.
Because the NSF focuses on trends in science and engineering education, its disciplinary
classification is most detailed in these areas. The utility of the NSF system for
the purposes of the Humanities Indicators (HI) is limited. For example, the NSF
scheme does not distinguish between the academic study of the arts, considered by
the HI to be part of the humanities, and art performance. This makes it impossible
for the HI to include in its tally those degrees conferred in the areas of musicology,
art history, film studies, and drama history/criticism. Moreover, while the HI considers
such disciplines as archeology, women’s studies, gay and lesbian studies, and Holocaust
studies to be part of the humanities field, NSF categorizes them as social sciences.
Additionally, NSF places interdisciplinary degrees in areas such as general humanities
and liberal studies in a broad “Other” category that includes degrees for many disciplines
that are clearly not within the purview of the humanities as conceptualized by the
HI. Consequently, such interdisciplinary degrees, along with those mentioned above,
cannot be captured in humanities degree counts from 1966 to 1986.
For 1987 and later years (1995 and later for data on the race/ethnicity of degree
recipients), however, NSF also categorizes earned degrees according to the more
detailed Classification of Instructional Programs (CIP), which permits a more precise
count of humanities degrees; that is, a count that includes degrees in all those
programs that are part of academic disciplines included within the scope of the
humanities for the purposes of the HI. (For an inventory of the disciplines and
activities treated as part of the humanities by the HI, see the Statement on the Scope of the “Humanities”
for Purposes of the Humanities Indicators.) The CIP was first developed
by NCES in 1980 as a way to account for the tremendous variety of degree programs
offered by American institutions of higher learning and has been revised three times
since its introduction, most recently in 2009 (this version is referred to as “CIP
2010”). The CIP has also been adopted by Statistics Canada as its standard disciplinary
classification system.
For the purposes of the Humanities Indicators the CIP has several advantages over
the NSF classification system. For example, because the NSF system groups degrees
in the nonsectarian study of religion with those awarded in programs designed to
prepare students for religious vocations and since the latter type of degree is
much more common, the HI cannot include what the NSF considers to be degrees in
religion in the humanities degree counts for years prior to 1987. With CIP-coded
data, however, academic disciplines such as comparative religion can be separated
from vocational programs such as theology and thus can be included in the humanities
degree tally. Additionally, when using CIP-coded data, the HI can include degrees
in all the excluded disciplines mentioned above, from art history to Holocaust studies,
in its counts of humanities degrees from 1987 onward. For an inventory of the NSF
and CIP disciplinary categories included by the HI under the broad field headings
(“humanities,” “natural sciences,” etc.) used throughout Part II of the HI, see
the
NSF and CIP Discipline Code Catalog. This catalog also indicates which degree
programs are included by the HI within specific humanities disciplines (e.g., for
the purposes of the HI, English degrees include those classified under CIP as being
in “English Language and Literature,” “American Literature,” and “Creative Writing,”
among others).
In constructing indicators that use IPEDS data to track historical trends
in the academic humanities, the HI has employed completion data that were classified
using both the NSF and CIP systems. In these cases, either a note accompanying the
chart or a break in the trend line indicates where estimates based on the NSF classification
system leave off and those based on CIP begin. For those indicators reporting degree
data gathered in 1987 or more recently (1995 or more recently for the charts and
tables describing the proportions of all degrees received by members of racial/ethnic
minority groups), CIP-coded data are used.
In the case of several of the degree-related indicators, the humanities are compared
to certain other fields such as the sciences and engineering. The nature of these
fields is specified in the
Statement on the Scope of the “Humanities” for Purposes of the Humanities Indicators.
These broad fields do not encompass all postsecondary programs. Therefore, where
fields are being compared in terms of their respective shares of all degrees, the
percentages will not add up to 100%. Also, none of the graphs showing change over
time includes a data point for the academic year 1999, because the NCES did not
release data for that year.
The degree counts presented as part of the HI do not include so-called double major
degrees. When degrees are earned concurrently in this way, only the first degree
is counted. Although second degrees are not common (in the 2006–2007 academic year,
they accounted for 5.2% of all degree completions), anecdotal evidence suggests
that a preponderance of such degrees are in the humanities. Second-degree data first
became available via WebCASPAR in November 2010. If resources permit, an analysis
of these data will be conducted in 2011.
Data on the number of students completing minors are not collected as part of IPEDS,
but such information was compiled for selected humanities disciplines as part of
the American Academy of Arts and Sciences–sponsored Humanities Departmental Survey (HDS; see the HDS final report, page 8, Table 12).
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