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Survey of Postdocs at Federally Funded R…




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National Center for Science and Engineering Statistics

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Survey of Postdocs at Federally Funded Research and Development Centers (FFRDC Postdoc Survey)2023








Survey Info


Summary


Areas of Interest



Survey Administration



Survey Details





Methodology


Survey Description


Survey Overview (2023 Survey Cycle)



Key Survey Information



Survey Design



Data Collection and Processing



Survey Quality Measures



Data Availability and Comparability



Data Products




Technical Notes


Survey Overview (2023 Survey Cycle)



Key Survey Information



Survey Design



Data Collection and Processing Methods



Survey Quality Measures



Data Comparability (Changes)



Definitions




Questionnaires




Data


Data Tables



General Notes



Acknowledgments and Suggested Citation


Acknowledgments



Suggested Citation





Analysis







Select a cycle year
2023

2021

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The FFRDC Postdoc Survey collects aggregate information on the demographic characteristics and fields of research of postdoctoral researchers employed at federally funded research and development centers as of 1 October of the survey year.















Survey Info

Methodology

Data

Analysis








Survey Info







Summary

The FFRDC Postdoc Survey is a census of all federally funded research and development centers (FFRDCs) in the United States that employed postdoctoral researchers (postdocs) as of 1 October of the survey year. The survey is conducted as part of the Survey of Graduate Students and Postdoctorates in Science and Engineering, which is sponsored by the National Center for Science and Engineering Statistics within the U.S. National Science Foundation and by the National Institutes of Health. The survey collects the total number of postdocs in each FFRDC by demographic characteristic, source of financial support, and field of research.

Areas of Interest

Science and Engineering Workforce

STEM Education

Survey Administration

RTI International is the data collection contractor. The survey data are collected through coordinators at eligible FFRDCs.



Survey Details

Status	Active
Frequency	Periodic

Cycle Details

Reference Period	FY 2023
Released	15 October 2024

Report Downloads
Survey Description (PDF 237 KB)

Data Tables (PDF 348 KB)














Featured Survey Analysis









Ongoing Changes in the Demographic Composition of Postdoctoral Researchers at Federally Funded Research and Development Centers: 2023

October 15, 2024

Product ID: NSF 24-339

ViewDownload







FFRDC Postdoc Survey Overview

View and Download

















Data Highlights
Explore survey data







The number of postdocs who are U.S. citizens or permanent residents increased by 190 (13%) between 2019 and 2023








The number of postdocs with a temporary visa increased by 104 (5%) during this period



View analysis





20%






Percentage increase of female postdocs at federally funded R&D centers between 2019 and 2023




















Methodology










Survey Description







Survey Overview (2023 Survey Cycle)







Key Survey Information







Survey Design







Data Collection and Processing







Survey Quality Measures







Data Availability and Comparability







Data Products









Technical Notes







Survey Overview (2023 Survey Cycle)







Key Survey Information







Survey Design







Data Collection and Processing Methods







Survey Quality Measures







Data Comparability (Changes)







Definitions









Questionnaires

















Survey Description







Survey Overview (2023 Survey Cycle)





Purpose


The Survey of Postdocs at Federally Funded Research and Development Centers (FFRDC Postdoc Survey) is intended to identify all FFRDCs that employed postdoctoral researchers (postdocs) as of 1 October of the survey year and to collect aggregate information on the demographic characteristics and fields of research of the postdocs employed at each FFRDC. The survey is conducted as part of the Survey of Graduate Students and Postdoctorates in Science and Engineering, which is sponsored by the National Center for Science and Engineering Statistics (NCSES) within the U.S. National Science Foundation (NSF) and the National Institutes of Health.




Data collection authority


National Science Foundation Act of 1950, as amended, and the COMPETES Reauthorization Act of 2010. The Office of Management and Budget control number is 3145-0062, expiration date 30 August 2026. The ​disclosure review number is NCSES-DRN24-021.




Major changes to recent survey cycle


None.












Key Survey Information






Frequency




Periodic.






Initial survey year




2005.






Reference period




1 October 2023.






Response unit




Establishment.






Sample or census




Census.






Population size




42 FFRDCs.






Sample size




Not applicable.






Key variables




Key variables of interest are listed below.

Sex and citizenship

Source of financial support

Ethnicity and race for U.S. citizens and permanent residents

Field of research

Administrative type of the FFRDC (university, nonprofit, industry)













Survey Design





Target population


The survey target population includes all FFRDCs that employed postdocs as of 1 October 2023.




Sample frame


The survey is a census of all FFRDCs in the Master Government List of FFRDCs in the United States as of March 2023. The list is maintained by NSF (https://www.nsf.gov/statistics/ffrdclist/archive/ffrdc-2023.xlsx).




Sample design


Not applicable.












Data Collection and Processing





Data collection


The survey data are collected via a Web instrument. Before data collection begins, prior survey coordinators at each FFRDC are contacted via e-mail to confirm their status as the most appropriate contact person. Directors at the FFRDCs are notified about the survey launch and those at newly established FFRDCs are asked to designate a contact person for the survey. The FFRDC Web survey access information is then e-mailed to the appropriate contact person.




Data processing


All data submitted by the FFRDCs are reviewed to ensure that all data fields were completed and that data are internally consistent. Data from any FFRDC that differ from the prior year data at that FFRDC by more than 20% are flagged for review by the survey staff. If additional information or data corrections are needed, FFRDC respondents are contacted by telephone or e-mail and asked to provide additional information or to correct data.




Estimation techniques


The survey is a census of all eligible FFRDCs. No FFRDCs required imputation in 2023.












Survey Quality Measures





Sampling error


Not applicable.




Coverage error


There is no coverage error for this survey other than that, if any, from the Master Government List of FFRDCs maintained by NSF.




Nonresponse error


The survey typically has high response rates. For the 2023 cycle, 100% of FFRDCs provided complete or partial data.




Measurement error


Potential sources of measurement errors include incomplete administrative data or data misreported by the respondent.












Data Availability and Comparability





Data availability


Postdoc data from FFRDCs are available for 2005–07, 2009–10, 2012–13, 2015, 2017, 2019, and 2021. The FFRDC Postdoc Survey data were first published in 2010.




Data comparability


The FFRDC postdoc counts in 2012 and subsequent years are not comparable with the counts reported in 2010 and prior years because the Frederick National Laboratory for Cancer Research (FNLCR) revised its postdoc reporting to include only FFRDC contract employees after it was reorganized and renamed from the National Cancer Institute at Frederick in 2012. Consequently, the total number of postdocs reported by FNLCR dropped from 286 in 2010 to 25 in 2012. All comparisons of FFRDC postdoc data spanning this period need to account for this difference.












Data Products





Publications


NCSES releases the data from this survey through data tables and analytic products available at the survey homepage (https://ncses.nsf.gov/surveys/ffrdc-postdocs/).




Electronic access


To obtaindata files, contact NCSES.

























Technical Notes





Survey Overview (2023 Survey Cycle)


Purpose.The Survey of Postdocs at Federally Funded Research and Development Centers (FFRDC Postdoc Survey) is intended to identify all FFRDCs that employed postdoctoral researchers (postdocs) as of 1 October of the survey year and to collect aggregate information on the demographic characteristics and fields of research of the postdocs employed at each FFRDC. The survey is conducted as part of the Survey of Graduate Students and Postdoctorates in Science and Engineering, which is sponsored by the National Center for Science and Engineering Statistics (NCSES) within the U.S. National Science Foundation (NSF) and by the National Institutes of Health.

Data collection authority.The information collected in the FFRDC Postdoc Survey is solicited under the authority of the National Science Foundation Act of 1950, as amended, and the America COMPETES Reauthorization Act of 2010. The Office of Management and Budget (OMB) control number is 3145-0062 and expires on 30 August 2026. The ​disclosure review number is NCSES-DRN24-021.

Survey contractor.RTI International.

Survey sponsors.The FFRDC Postdoc Survey is conducted as part of the Survey of Graduate Students and Postdoctorates in Science and Engineering, which is sponsored by NCSES within NSF and by the National Institutes of Health. The Department of Energy provided funding until 2010.




Key Survey Information


Frequency. Periodic.

Initial survey year. 2005.

Reference period. 1 October 2023.

Response unit. Establishment.

Sample or census. Census.

Population size. 42 FFRDCs.

Sample size. Not applicable.




Survey Design


Target population. The survey target population includes all FFRDCs that employed postdocs as of 1 October 2023.

Sampling frame. The survey is a census of all FFRDCs in the Master Government List of FFRDCs in the United States as of March 2023.​The 2023 version of FFRDC list used for this data collection can be found at https://www.nsf.gov/statistics/ffrdclist/archive/ffrdc-2023.xlsx.The 2023 version of FFRDC list used for this data collection can be found at https://www.nsf.gov/statistics/ffrdclist/archive/ffrdc-2023.xlsx. The list is maintained by NSF. NSF maintains the master list by querying all federal agencies annually to determine changes, additions, or deletions to the list. FFRDCs are engaged in basic research, applied research, development, or management of R&D activities, either on direct request of the government or under a broad charter from the government—in both cases, under the monitorship of the government.

Sample design. Not applicable.




Data Collection and Processing Methods


Data collection. On 1 January 2024, before starting data collection, prior survey coordinators were contacted via e-mail to confirm whether they were still the most appropriate contact. Additional follow-up contacts through e-mails and telephone calls were made to staff at those FFRDCs that did not immediately confirm the contact person. These efforts resulted in identifying a contact person for all returning FFRDCs. On 14 February 2024, FFRDC directors were sent an e-mail inviting their FFRDC to participate in the 2023 survey. On 14 February 2024, the FFRDC coordinators received a survey launch e-mail that provided them with their Web access information and indicated the due date of 27 March 2024.

Mode. Self-administered online questionnaire (Web).

Response rates. All of the 42 FFRDCs responded to the survey. Thus, the overall FFRDC response rate was 100%, and the response rate for FFRDCs that employed postdocs was 100%. The response rate calculations adhere to American Association for Public Opinion Research standards for computing response rates.​See response rate 1 calculation in American Association for Political Opinion Research (AAPOR). 2016. Standard Definitions: Final Dispositions of Case Codes and Outcome Rates for Surveys.9th ed., p. 61. Deerfield, IL: AAPOR.See response rate 1 calculation in American Association for Political Opinion Research (AAPOR). 2016. Standard Definitions: Final Dispositions of Case Codes and Outcome Rates for Surveys.9th ed., p. 61. Deerfield, IL: AAPOR.

Data editing. All data submitted by the FFRDCs were reviewed to ensure that all data fields were completed and that data were internally consistent. Any FFRDC with cell counts that differ by more than 20% from its corresponding prior-year data was flagged for edit verification. In cases where survey staff determined that confirmation was needed, FFRDC respondents were contacted by e-mail and asked to correct and resubmit the survey data.

Imputation. No imputation was applied to data collected in the 2023 survey cycle.

Weighting. Not applicable.

Variance estimation. Not applicable.




Survey Quality Measures


Sampling error. Not applicable.

Coverage error. There is no coverage error for this survey other than that, if any, from the Master Government List of FFRDCs maintained by NSF.

Nonresponse error. The survey typically has high response rates. For the 2023 cycle, 100% of FFRDCs provided complete or partial data.

Measurement error. The most likely source of measurement error is from respondents’ misreporting of information. To minimize reporting errors, substantial changes in counts and inconsistent data survey responses are subject to follow-up contacts to verify changes and correct anomalies in the data. The survey Web instrument was also designed to allow respondents to indicate that they have postdocs but do not have the information about them for a particular grid, which allows missing information to be distinguished from the reporting of zero counts.




Data Comparability (Changes)


Changes in survey coverage and population
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