In this study, we seek to investigate what influences children's intelligence in early childhood. The Singapore Cohort Study of the Risk Factors of Myopia (SCORM) is used in to assess determinants of childhood IQ and changes in IQ. This longitudinal data set, collected from 1999, includes a...

This paper utilises the Aberdeen Children of the 1950s (ACONF) cohort to investigate how both perinatal factors and changes in a child's environment impacts on IQ development between the ages of 7 and 11 years. Two methodological frameworks were utilised; (1) linear and logistic regression, the...