Sammons, Pam;
Sylva, Kathy;
Melhuish, Edward;
Taggart, Brenda;
Elliot, Karen;
Siraj-Blatchford, Iram;
(2002)
The Effective Provision of Pre-School Education (EPPE) Project: Measuring the impact of pre-school on children's cognitive progress over the pre-school period.
Institute of Education, University of London/ Department for Education and Skills: London.