First Round of PIAAC Data Collection in the United States
The first round of data collection in the United States (officially known as the U.S. PIAAC Main Study) was conducted from August 2011 through April 2012 with a nationally representative household sample of 5,000 adults between the ages of 16 and 65.
Publications based on the first round of U.S. data collection
Second Round of PIAAC Data Collection in the United States
The second round of U.S. data collection (officially known as the National Supplement to the Main Study) included a household survey, which was conducted from August 2013 through April 2014. It was administered to a sample of 3,660 U.S. adults in households in order to (a) enhance the U.S. PIAAC dataset by oversampling young adults (ages 16-34) and unemployed adults (ages 16-65), and (b) expand the sample to include older adults (ages 66-74). The expanded national sample (total of about 8,700 adults living in the household) supports more accurate and reliable national estimates for these subgroups and, in the case of older adults, estimates for new groups not represented in the first round of PIAAC.
Publications based on the second round of U.S. data collection