The National Longitudinal Study of Adolescent Health (Add Health) is a longitudinal study of a nationally representative sample of adolescents in grades 7-12 in the United States during the 1994-1995 school year. Add Health combines longitudinal survey data on respondents' social, economic, psychological and physical well-being with contextual data on the family, neighborhood, community, school, friendships,...

The Monitoring the Future: A Continuing Study of the Lifestyles and Values of Youth annual surveys explore changes in important values, behaviors, and lifestyle orientations of contemporary American youth. Each year, large, distinct, nationally representative samples of 8th-, 10th-, and 12th-grade students in the United States are asked to respond to drug use and demographic questions, as well as to...

The Fragile Families and Child Wellbeing Study is following a cohort of nearly 5,000 children born in large U.S. cities between 1998 and 2000, roughly three-quarters of whom were born to unmarried parents. The Study consists of interviews with both mothers and fathers at birth and again when children are ages one, three and five, plus in-home assessments of children and their home environments at ages...

This is a composite set of RealtyTrac data on property sales that have occurred in the United States between the years 2005 and 2016. The main data is composed of RealtyTrac's Tax Assessor Database. The data include information on property characteristics, location, ownership, and use. The Data Dictionary and Data Coverage Guide provide detailed information on variables available and geographic coverage,...

Data for the Gallup World Poll is collected by phone. In geographic areas that have low access to telephone services, survey staff go to that area and ask questions in person. The Gallup World Poll includes core questions on business and economics, citizen engagement, communications and technology, education and families, environment and energy, food and shelter, government and politics, health, law...

The Gallup U.S. Daily Tracking includes two parallel surveys, the U.S. Daily and the Gallup-Sharecare Well-Being Index. Gallup interviews approximately 1,000 U.S. adults every day, half of whom respond to the U.S. Daily survey and the other half respond to the Gallup-Sharecare Well-Being Index survey. The U.S. Daily survey includes information about political affiliation, presidential approval ratings,...

This dataset is student-level administrative data. It is compiled by the New York City Department of Education (DOE) as part of their Fitnessgram program. Fitnessgram is a fitness assessment for students K - 12 in the New York City public schools. As a part of this program, data is collected about student height, weight, fitness level, strength, endurance, and flexibility. Data collection began in...