Read brief descriptions of the methods and procedures used for each round of SASS and TFS. Please refer to the reports that accompany each data set for more complete information about the following categories: Questionnaire Design, Sampling Frames, Sample Design, Data Collection, Data Ending, Imputation, Weighting, Response Rates, and Manuals and Technical Reports.
Select the SASS year from the menu for collection methods.
Select the TFS year from the menu for collection methods.
Select the PFS year from the menu for collection methods.
Learn about the NCES procedures used to protect respondents' confidentiality and the differences between SASS public-use and restricted-use data files.