Target centre A total of 141 pre-school centres were recruited to the EPPE research covering 6
types of provision. The sample of children was drawn from these target centres.
Value added models Longitudinal multilevel models exploring children’s social/behavioural
developmental gains over the pre-school period, controlling for prior social behaviour and
significant child, parent and home learning environment characteristics. These models are
equivalent to the value added multilevel models in Section 3 of EPPE Technical Paper 8a
exploring children’s cognitive progress over the pre-school period, controlling for prior attainment
and significant child, parent and home learning environment characteristics.
Value added residuals Differences between predicted and actual results for pre-school centres
(where predicted results are calculated using value added models).
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