README_PIAAC_PUBLIC.TXT Programme for the International Assessment of Adult Competencies (PIAAC) U.S. Public Use File (PUF) The PIAAC U.S. PUF contains individual unit record data including both responses to the background questionnaire and the cognitive assessment. Statistical disclosure control treatments were applied due to confidentiality concerns. For more details on the data, please refer to Appendix J of the U.S. PIAAC technical report* (see more information about the report at the end of this document). The datasets and associated materials are listed as follows: prgusams_puf.sas7bdat -- PUF dataset in SAS format; prgusams_puf.sav -- PUF dataset in SPSS format; prgusams_puf.dat -- PUF dataset in ASCII format; codebook_puf.pdf -- codebook for PUF; NOTES: Codebook frequencies are unweighted. prgusams_puf.sas -- SAS data definition code for PUF; read_indata_puf.sas -- Program to read in the PUF ASCII dataset; PIAAC-USA_Background_Compendium_Revised_07152015.xlsx -- tables contain weighted estimates using the U.S. PUF for users to check that they are performing analyses correctly using tools such as the PIAAC Data Explorer and PIAAC Data Analyzer. *Hogan, J., Montalvan, P., Diaz-Hoffmann, L., Dohrmann, S., Krenzke, T., Lemay, M., Mohadjer, L., and Thornton, N. (2013). Program for the International Assessment of Adult Competencies 2012: U.S. Main Study Technical Report (NCES 2014-047). U.S. Department of Education. Washington, DC: National Center for Education Statistics. Available from http://nces.ed.gov/pubsearch.