Centre for Longitudinal Studies, Institute of Education20 Bedford Way, London WC1H 0AL
- +44 (0)20 7612 6875
- +44 (0)20 7612 6880
General Ability Test (Douglas, 1964) - containing verbal and non-verbal items. Reading Comprehension Test - constructed by the National Foundation for Educational Research in England and Wales (NFER) specifically for use in this study. Arithmetic/Mathematics Test - again constructed by NFER especially for use in this study.