Table 2.

Pearson’s correlation coefficients between school characteristics at baseline (age 7)

	1.	2.	3.	4.	5.	6.	7.
1. School size (deciles)	1.00
2. School’s pupil teacher ratio (deciles)	0.40*	1.00
3. School’s proportion of native English speakers (deciles)	−0.31*	−0.04*	1.00
4. School’s proportion of free school meal eligibility (deciles)	0.06*	−0.30*	−0.35*	1.00
5. School’s proportion of children with special educational needs (without statement) (deciles)	0.04*	−0.17*	−0.20*	0.55*	1.00
6. School’s average Key Stage 1 score (deciles)	−0.14*	0.20*	0.26*	−0.63*	−0.54*	1.00
7. School’s ethnic heterogeneity	0.21*	0.03*	−0.78*	0.25*	0.11*	−0.13*	1.00

*p < 0.01