Toward a Better Understanding of Race/Ethnic Differences in Active Life Expectancy • Mark D. Hayward, Pennsylvania State University ; David F. Warner, Pennsylvania State University ; Eileen Crimmins, University of Southern California

Does Frailty Always Mean Short Longevity? • Anatoli I. Michalski, Max Planck Institute for Demographic Research ; Kenneth G. Manton, Duke University ; Anatoli Yashin, Max Planck Institute for Demographic Research

A Comprehensive Sociomedical Framework for Measuring Changes in Physical Functional Status among Older Age Groups • Shuanglin You, University of North Carolina at Chapel Hill ; S.L. Bernard, Research Triangle Institute ; R.G. Rozier, University of North Carolina at Chapel Hill ; Jianwen Cai, University of North Carolina at Chapel Hill

Trajectories of Physical Disability and Distress: The Longitudinal Effects of Social Support • Miles G. Taylor, Duke University ; Scott M. Lynch, Princeton University