The PIAAC 2012/14 U.S. RUF contains individual unit record data including both responses to the background questionnaire and the cognitive assessment from both the first and second U.S. PIAAC data collections, completed in 2012 and 2014, respectively. Statistical disclosure control treatments were applied due to confidentiality concerns. In addition to the variables in the PUF (
NCES 2014-667REV), the RUF contains detailed versions of variables and additional data collected through U.S. specific questionnaire routing. The RUF can be accessed through a restricted use license agreement with the National Center for Education Statistics. For more details on the RUF, please refer to Appendix E of the U.S. PIAAC Technical Report (
NCES 2016-036REV).