Table 1. Critical differences (%) to establish significant change for each of the six early development indices.

Community size (# of children)	Developmentally vulnerable (1+) (%)	Physical Health & wellbeing (%)	Social competence (%)	Emotional maturity (%)	Language & cognitive skills (%)	Communication & general knowledge (%)
200–299	4.7	5	4.6	4.9	4.8	5.2