“…The enhancement of children's social skills is one of the most important outcomes of early childhood education (Gregoriadis, Grammatikopoulos, & Zachopoulou, 2013;Serpell & Mashburn, 2012) because preschoolers' social skills are related to school readiness and adjustment (Denham, 2006;Rimm-Kaufman, Pianta, & Cox, 2000), in order to later succeed in academic achievement (McWayne, Cheung, Green Wright, & Hahs-Vaughn, 2012;Oades-Sese, Esquivel, Kaliski, & Maniatis, 2011) and to peer acceptance (Lindsey, 2002).…”