Ten Hypotheses about Socioeconomic Gradients and Community Differences in Children's Development Outcomes
The term "socio-economic gradient" is often used to describe the relationships between social outcomes & socio-economic status (SES) for individuals in a specific community. This paper defines socio-economic gradients and suggests a standardized method for presenting them. It further sets out ten hypotheses about socio-economic gradients and community differences, describes the statistical models for testing them, and discusses their implications for social policy. The hypotheses are tested using data from two Canadian surveys, the National Longitudinal Survey of Children & Youth and Understanding the Early Years. The hypotheses examine the relationship between children's literacy & vocabulary skills and such factors as parents' SES, the average level of community SES, community homogeneity in SES; socio-economic gradients among low & high-status SES children; variation within & among communities in children's vocabulary skills; whether successful communities tend to be in close proximity to other successful communities; and the temporal stability of relationships between SES & child developmental outcomes. The findings show that there are several factors, both at family & community levels, which by themselves appear to have a small effect, but which taken together can have a substantial effect on children's early development.