The notion that vitamins, minerals, and other "supplemental" nutrients profoundly change behavior, mood, and intellect has origins as old as recorded history. Research has indeed suggested connections between nutrient deficiencies and behavior problems, but correlations are not the same as causality. This "Abell Report" is an…

Logistic and Cox regression methods are practical tools used to model the relationships between certain student learning outcomes and their relevant explanatory variables. The logistic regression model fits an S-shaped curve into a binary outcome with data points of zero and one. The Cox regression model allows investigators to study the duration…

Currently there is a lack of affordable, accessible, quality child care in America. A substandard child care system not only negatively affects families, but also impacts broader societal and political issues, such as the economy, gender equity, tax and budget policies, and welfare reform. In this report, the authors propose two recommendations to…