The Demographic Assessment for Health Literacy (DAHL): a new tool for estimating associations between health literacy and outcomes in national surveys.
Hanchate AD, Ash AS, Gazmararian JA, Wolf MS, Paasche-Orlow MK. The Demographic Assessment for Health Literacy (DAHL): a new tool for estimating associations between health literacy and outcomes in national surveys. J Gen Intern Med. 2008 Oct; 23(10):1561-6.