“…Some inconsistencies have been found in previously conducted studies. Some studies have found a positive effect of early numeracy activities at home on later mathematics achievement (Casey et al, 2018;Chiu, 2018;Galindo & Sonnenschein, 2015;Huang et al, 2017;LeFevre et al, 2009;Niklas & Schneider, 2017;Zhu & Chiu, 2019), while others have found a mixed or nonsignificant effect (Blevins-Knabe et al, 2000;Missall et al, 2015;Skwarchuk, 2009;Skwarchuk et al, 2014;Zhang et al, 2020). These inconsistent findings might be because previously conducted studies have not properly considered the effect of a student's background and examined small non-representative samples (Zhu & Chiu, 2019).…”