1. Department of Sociology, Purdue University , West Lafayette, Indiana , USA
2. Center on Aging and the Life Course, Purdue University , West Lafayette, Indiana , USA
3. Department of Neurological Sciences at Rush University Medical Center , Chicago, Illinois , USA
4. Rush Alzheimer’s Disease Center at Rush University Medical Center , Chicago, Illinois , USA
5. Department of Human Development and Family Studies, Purdue University , West Lafayette, Indiana , USA
6. Center for Gerontology, Virginia Tech , Blacksburg, Virginia , USA