... First, the article represents a concerted effort by leading metacontingency theoreticians and experimenters to agree upon terms pivotal to the metacontingency enterprise, including "metacontingency" itself, to construct, "a functional approach to the analysis of cultural level phenomena" (Glenn et al., 2016, p. 25). Second, not only is their article commonly cited by experimenters studying cultural selection through metacontingencies when stipulating experimental aims (Soares et al., 2018;Soares et al., 2019;Velasco et al., 2017), but descriptions provided of key events and relations are similar to, inclusive of, refine, and build upon older descriptions (e.g., Glenn, 1986Glenn, , 1988Glenn, , 1991Glenn, , 2004Glenn, , 2010Glenn & Malott, 2004;Houmanfar & Rodriguez, 2006;Houmanfar et al., 2010;Tourinho, 2013) that are commonly cited in several older experiments (e.g., Costa et al., 2012;Hunter, 2012;Morford & Cihon, 2013;Ortu et al., 2012;Sampaio et al., 2013;Smith et al., 2011;Tadaiesky & Tourinho, 2012). These descriptions may be elaborated (e.g., Houmanfar et al., 2010), but most descriptions of metacontingency experiments specify experimental goals, procedures, and analyses in terms epitomized by Glenn et al.'s (2016) article. ...