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Indicators of School Crime and Safety: 2010
NCES 2011-002
November 2010

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Table 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 ages 12 or
older living in households
and group quarters
19922008 Annually Incidents occurring
during the calendar
The School-Associated Violent Deaths Surveillance Study (SAVD) Universe 1992 through
2009 continuous
July 1 through June 30 1
School Crime Supplement (SCS) to the National Crime Victimization Survey Students ages 1218
enrolled in public and
private schools during
the school year2
1995, 1999, and
20012007 biennially
Incidents during the
school year2

Not specified
3, 8, 10, 11,
17, and 18

School Survey on Crime and Safety (SSOCS) Public primary, middle,
and high schools3
19992000, 200304,
200506, and 200708
19992000, 200304,
200506, and 200708
school years
6, 7, 19, and 20
Schools and Staffing Survey (SASS) Public and private
school K12 teachers
199394, 19992000,
200304, and 200708
Incidents during the
previous 12 months
5, 12
Supplementary Homicide Reports (SHR) Universe 1992
2008 continuous
July 1 through
June 30
Web-Based Injury Statistics Query and Reporting System Fatal Universe 1992 through
2009 continuous
Calendar year 1
Youth Risk Behavior Surveillance System (YRBSS) Students enrolled
grades 912 in public
and private schools at
the time of the survey
19932009 biennially Incidents during
previous 12 months

Incidents during the
previous 30 days
4, 9, and 13

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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