“…This is problematic inasmuch as one predominant goal of applying inferential statistics is to be able to generalize a set of observations to a wider population that the same sampling procedure would produce (i.e., external validity). However, drawing such population-level conclusions is oftentimes difficult to achieve, particularly in research focusing on the acquisition of variation and in SLA as a whole, given the tremendous individual variation in L2 learning outcomes and, by extention, the inherent heterogeneity of acquisition and development (Dörnyei, 2006;Ellis, 2004;Geeslin et al, 2013). The field of applied linguistics has begun addressing such issues, particularly within the meta-theoretical framework of complex dynamic systems theory (CDST; for a recent review of the CDST research in SLA, see Hiver et al, 2022), and there are increasing calls for innovative methods to more accurately transfer findings to wider populations (see, e.g., Lowie & Verspoor, 2019;.…”