автор: Aaron Maitland

JENNIFER MADANS, Ph D, is Associate Director for Science at the National Center for Health Statistics (NCHS). She has published numerous papers in the areas of health status measurement, chronic disease epidemiology, and aging. KRISTEN MILLER, Ph D, is Director of the Question Design Research Laboratory at the NCHS. She currently oversees the question evaluation research program and designs and implements research projects on data quality and comparability in the health sciences. AARON MAITLAND, MS, is Statistician at the Question Design Research Laboratory at the NCHS, where he is the administrator of Q-Bank, the agency»s online database of question evaluation reports for Federal surveys. GORDON WILLIS, Ph D, is a Cognitive Psychologist at the Applied Research Program in the Division of Cancer Control and Population Sciences at the National Cancer Institute. Dr. Willis has more than twenty years of experience in planning, conducting, and reporting of all phases of cognitive laboratory research.