The present protocol is being reported at the point where the data have been collected and checked. In discussing this protocol we refer back to the nine research objectives which were stated in the application for funds to Research Into Ageing. Research objectives 1 to 4 have been achieved by the completion of data collection according to this protocol. The LBC1936 data will now be used to test the hypotheses stated in research objectives 5 to 7. Research objective 8 has been achieved by obtaining further support, from Help the Aged's Disconnected Mind project, to continue examining the LBC1936 in subsequent waves. Research objective 9 has been achieved by there now being a resource that may be used by other researchers.
