Abstract
This study analyzes the influence of socioeconomic status, quality of family context and sibling status on cognitive development in a sample of 551 five‐year‐old children. The regression analyses confirmed the predictive value of socioeconomic status and quality of family context on cognitive development. The quality of family context mediates the relation between socioeconomic status and cognitive development. None of the variables relating to the sibling group showed a significant relationship with cognitive development.
Acknowledgements
This study was supported by two grants from the Basque Government. The first was awarded to E.B.A.F. during his stay at the Centre for Family Research, University of Cambridge, UK (1998), where the project was designed. The second was awarded to the research team by the Political Science Department of the Basque Government (PI 1999/31) and by The Basque Country University (227‐231‐HA 082/99). The authors wish to thank the families for their collaboration and interest in the project, and Diana Draper for translating the manuscript into English.