“…11 See Heckman et al (2010a), Heckman et al (2010b), Reynolds et al (2004), Reynolds et al (2007), Reynolds et al (2011), Campbell et al (2002, , Campbell, Conti, Heckman, Moon, and Pinto (2012); Aughinbaugh (2001), and Garces et al (2002). 12 The aides received 8 weeks of training in nutrition and primary health care and another 8 weeks of training in child development, teaching techniques and toy making.…”