The 2003 National Assessment of Adult Literacy (NAAL) assessed the English literacy of adults in the United States. Included in the assessment were items designed to measure the health literacy of America’s adults. The assessment was administered to more than 19,000 adults (ages 16 and older) in households or prisons. Unlike indirect measures of literacy, which rely on selfreports and other subjective evaluations, the assessment measured literacy directly through tasks completed by adults. (Authors)