A particularly sensitive question is the reliability of CAWHS PE Sample participant responses to inquiries regarding authorization for U.S. employment. Additional analyses of participant responses were undertaken to further examine this issue. First, participants were asked if they had a Social Security card. Among males who said they lacked authorization for U.S. employment, 53% said they did not have a Social Security card. Among documented male workers, only 3% said they lacked a Social Security card. Among females who said they lacked authorization for U.S. employment, 70% said they did not have a Social Security card. Among documented female workers, just 7% lacked a Social Security card.