“…To date, participation has primarily been measured using self-report, including recall approaches (Salzer et al, 2014) and time use logs (Eklund et al, 2009;Yanos and Robilotta, 2011). While such approaches have been found to be reliable and valid (Salzer et al, 2014(Salzer et al, , 2015, additional approaches could be valuable, especially if they expand the types of mobility and participation constructs that can be assessed.…”