“…Furthermore, compared to other children, temperamentally vulnerable children have been found to be more affected by their mothers' and fathers' socialization (Belsky & Pluess, 2009). Although some studies have explored the joint effects of shyness (or nearly related but different constructions, such as behavioral inhibition) and parenting behavior on children's developmental outcomes (e.g., Baer et al, 2015;Hane, Cheah, Rubin, & Fox, 2008;Hastings, Rubin, & DeRose, 2005;Kienbaum, Volland, & Ulich, 2001;Lewis-Morrarty et al, 2012;Vreeke, Muris, Mayer, Huijding, & Rapee, 2013;Zarra-Nezhad et al, 2014;Zarra-Nezhad, Aunola, Kiuru, Mullola, & Moazami-Goodarzi, 2015), few longitudinal studies have focused on the development of children's pro-social behaviors (Hastings et al, 2005;Russell, Hart, Robinson, & Olsen, 2003;Zarra-Nezhad et al, 2014). Moreover, the vast majority of previous studies have focused on children younger than school age; thus, little is known about the joint effects of shyness and parenting on the development of children's pro-social behaviors during their critical transition to primary school (Zarra-Nezhad et al, 2014).…”