1. Department of Sociology and Gerontology and Scripps Gerontology Center, Miami University, Oxford, Ohio, USA
2. Department of Communication Sciences and Disorders, Central Michigan University, Mt. Pleasant, Michigan, USA
3. Ross and Carol Nese College of Nursing, The Pennsylvania State University, University Park, Pennsylvania, USA
4. The Polisher Research Institute at Abramson Senior Care, University Park, Pennsylvania, USA