The National Crime Victimization Survey (NCVS) series has been collecting data on personal and household victimization since 1973. It is updated annually, and the primary source of information on the characteristics of criminal victimization. Data are obtained twice each year from a sample of approximately 49,000 households and 100,000 persons. The survey is administered by the U.S. Census Bureau on behalf of the Bureau of Justice Statistics. The 2007 School Crime Supplement to the NCVS was designed to collect data on crime victimization in schools in the United States. Student respondents were asked a series of questions to determine their school attendance over the last six months at the time of interview. Other variables covered include violent crimes and household crimes, as well as information on the date, time, and place of the crimes. The sample was eligible children in households ages 12-18, and 6,503 completed interviews were produced for a 58.3 percent response rate.