School choice is associated with greater diversification in the social composition of different schools (OECD, 2007a, Musset, 2012), parents choosing schools according to several different factors instead of academic record alone (Sanders and Epstein, 1998, Musset, 2012). Parents tend to be concerned about their own, individual child rather than about school or system-wide endeavours aimed at benefiting all children (Fullan, 2007, Hargreaves, 2000, Westbury, 2007). They may have a role in curriculum development processes - intentional and often collective activity or process aimed at beneficial educational change (Marsh and Willis, 2007).