2010 paper in the Journal of Economic Perspectives on how the disparity in men's and women's math and verbal test scores might be explained by state or regional differences.
2010 study from UC Irvine and Queen’s University examining the effects of public-place smoking laws on smoking prevalence and second-hand smoke exposure.
2010 paper by the Harvard Medical School examining whether treating children and adults with mental health illnesses could reduce crime.
2009 metastudy in the Journal of Sleep Research on the relationship between sleep duration and mortality, based on 23 separate research papers
2009 paper in Circulation: Cardiovascular Quality and Outcomes examining the relationship between Medicare spending and outcomes for patients with heart failures
2010 survey by the Pew Hispanic Center on the relative attitudes of foreign- and U.S.-born Hispanics toward the 2010 Census.
2010 paper by Columbia University and City College researchers on the impact of smoking and obesity on mortality and disease.
2012 Yale University and Washington University of St. Louis study on the cost-effectiveness of three types of peer-intervention methods.
2009 Tufts University study on the relationship between household tobacco use and child nutrition in the developing world.
2009 Duke University and the University of Maryland study looking at school characteristics that influence the level of crime.