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Indicators of School Crime and Safety: 2009
NCES 2010-012
December 2009


Figure A.

Nationally representative sample and universe surveys used in this report


Survey Sample Year of survey Reference time period Indicators
National Crime
Victimization Survey (NCVS)
Individuals age 12 or older living in households and group quarters 1992–2007 AnnuallyIncidents occurring during the calendar year1 2
       
The School-Associated Violent
Deaths Surveillance Study (SAVD)
Universe 1992 through 2008 continuous July 1 through June 30 1
       
School Crime Supplement (SCS)
to the National Crime Victimization Survey
Students ages 12–18 enrolled in public and private schools during the school year2 1995, 1999, 2001, 2003, 2005, and 2007 Incidents during the school year2 3, 8, 10,
11, 17, and 18
Not specified 21
       
School Survey on Crime
and Safety (SSOCS)
Public primary, middle, and high schools3 1999–2000, 2003–04, 2005–06, and 2007–08 1999–2000, 2003–04, 2005–06, and 2007–08 school years 6, 7, 19, and 20
       
Schools and Staffing Survey (SASS) Public and private school K–12 teachers 1993–94,1999–2000, 2003–04, and 2007–08 Incidents during the previous 12 months 5, 12
       
Supplementary Homicide Reports (SHR) Universe 1992 through 2007 continuous July 1 through June 30 1
       
Web-Based Injury Statistics Query
and Reporting System Fatal
Universe 1992 through 2006 continuous Calendar year 1
       
Youth Risk Behavior Surveillance
System (YRBSS)
Students enrolled in grades 9–12 in public and private schools at the time of the survey 1993, 1995, 1997, 1999, 2001, 2003, 2005, and 2007 Incidents during the previous 12 months 4, 9, and 13
Incidents during the previous 30 days 14, 15, and 16
1 Respondents in the NCVS are interviewed every 6 months and asked about incidents that occurred in the past 6 months.
2 In 2007, the reference period was the school year. In all other survey years, the reference period was the previous 6 months. Cognitive testing showed that estimates from 2007 are comparable to previous years. For more information, please see appendix A.
3 Either school principals or the person most knowledgeable about discipline issues at school completed the SSOCS questionnaire.
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