“…It is posited that gender differences during childhood occur because boys begin to confront greater pressure from their peers to join organized sports when they begin school (Cairney, Hay, Faught, Mandigo, & Flouris, 2005), while girls are encouraged to participate in quieter activities (Rose, Larkin, & Berger, 1997). During the preschool years, however, boys and girls may not be influenced to the same degree by these socially constructed roles (Cairney et al, 2005;Ismael & Lawson, 2012;Nicaise, Kahan, & Sallis, 2011;Rose et al, 1997). Consistent with this reasoning, the unequivocal gender differences in the physical activity literature may not be evident until later in childhood, when children begin primary school.…”