“…Regarding the use of ET systems and the experimental environment, studies were predominantly built on desktop-based ET systems in the lab. With only three articles making use of mobile ET systems—either in the lab (Lindström, Berg, Nordfält, Roggeveen, & Grewal, 2016), the field (Wästlund et al, 2015), or using virtual reality (Bigné, Llinares, & Torrecilla, 2016)—technological advances appear to be underutilized as of the present. The sample size of studies ranged between 15 (Venkatraman, Payne, & Huettel, 2014) and 190 (Wästlund et al, 2015) participants, with a respective mean of 73 and a median of 66.…”