“…Most of the studies were pilot, simulation, or observational research (n =14) (Bilbao et al, 2016;Burns et al, 2014;Campos et al, 2014;Chen et al, 2007;Cook et al, 2010;Duval et al, 2018;Masumoto et al, 2017;Mo et al, 2018;Muller et al, 2013;Pfeil & Zaphiris, 2009;Quintana et al, 2019;Rebola et al, 2013;Uddin et al, 2016;Vanhems et al, 2013) and most were conducted in European countries (n = 9) (Bilbao et al, 2016;Burns et al, 2014;Duval et al, 2018;Kennedy et al, 2016;Muller et al, 2013;Peter et al, 2013;Pfeil et al, 2011;Pfeil & Zaphiris, 2009;Vanhems et al, 2013). All the studies focused on an older adult population, but only 10 studies selected older adults as their study participants (Campos et al, 2014;Kennedy et al, 2016;Masumoto et al, 2017;Mo et al, 2018;Peter et al, 2013;Pfeil et al, 2011;Pfeil & Zaphiris, 2009;Rebola et al, 2013;Uddin et al, 2016;Yu et al, 2015). Four out of 18 studies had sample sizes less than ten people (Bilbao et al, 2016;Burns et al, 2014;Cook et al, 2010;Yu et al, 2015)), and only five had sample sizes larger than 100 (Campos et al, 2...…”