1. Lindy Clemson, MAppSc(OT), is Lecturer, School of Occupation & Leisure Sciences, Faculty of Health Sciences, The University of Sydney, PO Box 170, Lidcombe, 1825 Australia; L.Clemson@fhs.usyd.edu.au
2. Robert G. Cumming, PhD, is Professor, School of Public Health, The University of Sydney, Lidcombe, Australia and the Centre for Education and Research on Ageing, Concord Hospital, Concord, Australia
3. Dr. Robert Heard, PhD, is Senior Lecturer, School of Behavioral Sciences, Faculty of Health Sciences, The University of Sydney, Lidcombe, Australia