Telehealth and telecare research has been dominated by efficacy trials. The field lacks a sophisticated theorisation of [a] what matters to older people with assisted living needs; [b] how illness affects people's capacity to use technologies; and [c] the materiality of assistive technologies....

Research that follows people over a period of time (longitudinal or panel studies) is important in understanding the ageing process and changes over time in the lives of older people. Older people may choose to leave studies due to frailty, or illness and this may diminish the value of the...