The data contain weight variables that should be used in analyzing the data. Users need to apply weights when computing estimates with the ATUS data because simple tabulations of unweighted ATUS data produce misleading results. The Respondent and Activity Summary data file in Parts 5 and 7 contain the ATUS final weight TUFINLWGT. No statistical weights have been generated for the Trips data file in part 8. Part 9 contains replicate weights based on the replicate weights developed for the CPS. The CPS replicate weights are based on a modified balanced half-sample method of replication, developed in the 1980s by Robert Fay. For information about the replicate weights, see the publication, Technical Paper 66: Current Population Survey -- Design and Methodology, available via the
ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:
Published tables and charts showing time use estimates for major activity categories, selected detailed activities, selected demographic characteristics and additional information are available via the
Terms of use are available at http://www.icpsr.umich.edu/icpsrweb/ICPSR/studies/30902/terms
AVAILABLE. This study is freely available to ICPSR member institutions.