There has been growing interest in the possibility that biological factors, including genes, might contribute to differences in political and social behavior. Over the last 40 years, human statistical and behavioral genetics have developed a variety of models that allow the effects of genetic and non-genetic inheritance to be estimated from human kinship data. Until quite recently, these method...

OBJECTIVES This study examines whether belief in the food addiction construct is associated with support for obesity-related policies (e.g., restrictions on foods served in schools and workplace cafeterias, subsidies on fruits and vegetables), while simultaneously examining other factors associated with policy support (e.g., political party affiliation). DESIGN Cross-sectional. SETTING Onli...

A Commonwealth Fund survey of adults age 19 and older,conducted from June 2007 to October 2007, finds that large majorities of the public, regardless of political affiliation or income level, say that the candidates' views on health care reform will be very important or somewhat important in their voting decision. Moreover, they believe employers--long the cornerstone of the health insurance sy...

In this paper, we extend existing work on latent attribute inference by leveraging the principle of homophily: we evaluate the inference accuracy gained by augmenting the user features with features derived from the Twitter profiles and postings of her friends. We consider three attributes which have varying degrees of assortativity: gender, age, and political affiliation. Our approach yields a...