Early childhood has long been known to be a formative time in a child's development-- a time when the brain produces more than 1 million neural connections every second during the first few years of a child's life. However, there are factors at the individual and community levels that impact the development process. In communities across America,…

Associations between community environment and cognitive ability were studied in 167 adoptive and 175 nonadoptive Colorado families. Seven families were omitted. A proposed model, tested by census measures, finds several aspects of communities showing environmental relationships with child IQ over parental influences. Rural communities have a…