“…This advantage, which is supported by many studies (Bialystok, 1999;Costa et al, 2008), has been communicated to the general public through significant media coverage (Bhattacharjee, 2012;Reville, 2014). Yet, several recent studies have failed to replicate this finding (Morton and Harper, 2007;Paap and Greenberg, 2013;Antón et al, 2014), leading many researchers to doubt its validity (de Bruin et al, 2015;Paap et al, 2016), and creating a division in the bilingualism research community between believers and skeptics (Bak, 2016;Bialystok, 2016;Titone et al, 2017). This ambiguous state of the literature is not limited to executive functioning.…”