“…Both picture-exchange-based aaC and speechgenerating devices (SGDs) have been demonstrated, via meta-analyses and systematic reviews, to have at least moderate effects overall on outcomes for people with aSD (flippin, reszka, & Watson, 2010;Ganz, earles-Vollrath, et al, 2012;Ostryn, Wolfe, & rusch, 2008;Preston & Carter 2009). although recent papers have investigated the use of current technologies (e.g., handheld-device and tablet-based aaC applications or apps) with people with aSD (flores et al, 2012;Ganz, Boles, Goodwyn, & flores, 2014), this is an emerging area, and the efficacy of these technologies is unclear.…”