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Indicators of School Crime and Safety: 2011
NCES 2012-002
February 2012

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Table 20.2.

Percentage of public schools that used selected safety and security measures, by school characteristics: School year 2009–10


School characteristic Controlled access during school hours   Drug testing   Required to wear badges or picture IDs   Metal detector checks on students   Sweeps and technology    
Buildings (e.g., locked or monitored doors)   Grounds (e.g., locked or monitored gates)   Athletes   Students in extracurricular activities (excluding athletes)   Students   Faculty
and
staff
  Random checks1   Required to pass through daily   Random dog sniffs to check for drugs1   Random sweeps
for contraband1,2
  Electronic notification system for schoolwide emergency   Structured, anonymous threat reporting system   Used security cameras to monitor school1   Limited access to social networking websites from school computers   Prohibited use of cell phones and text messaging devices   Required students to wear uniforms  
Total 91.7   46.0   6.0   4.6   6.9   62.9   5.2   1.4   22.9   12.1   63.1   35.9   61.1   93.4   90.9   18.9  
School level3                                                                
Primary 93.8   50.8   1.3 ! 1.2 ! 2.4   67.6   1.9     4.0   3.6   61.1   30.1   50.6   92.4   92.6   21.5  
Middle 94.4   41.9   7.3   5.9   11.9   62.8   9.4   1.5 ! 43.3   20.1   70.9   47.7   73.4   96.0   97.1   19.3  
High 85.9   42.8   19.1   13.4   19.0   58.3   12.0   4.8   60.1   28.7   66.6   45.6   84.3   94.6   80.2   9.7  
Combined 80.6   25.4   13.8   10.7   6.2 ! 35.9   6.9 ! 3.8 ! 47.5   25.6   52.8   33.2   67.2   92.9   83.2   15.1  
Enrollment size                                                                
Less than 300 88.6   37.5   7.0   6.9   3.1   42.4   2.8 ! 0.9 ! 22.3   16.7   51.5   28.1   48.2   95.4   90.2   15.4  
300–499 93.0   45.3   4.6   3.6   4.5   71.7   3.9   1.0 ! 16.1   8.1   62.2   32.2   61.1   91.2   93.5   17.1  
500–999 93.7   49.1   4.5   3.2   7.0   69.5   5.2   1.1   21.8   9.6   68.5   37.9   63.1   93.4   91.6   23.5  
1,000 or more 88.4   55.8   12.6   7.1   21.5   71.7   13.6   4.0   46.8   21.5   72.0   56.0   81.2   95.2   82.3   15.9  
Locale                                                                
City 93.1   58.7   2.7   1.4   9.3   63.5   10.6   3.7   12.2   12.6   58.6   38.0   59.5   93.8   91.3   35.1  
Suburban 92.8   46.6   2.8   1.8   8.7   75.6   3.4   0.9 ! 16.4   7.1   70.2   36.2   62.0   92.4   92.9   19.3  
Town 92.9   45.4   9.3   7.8   5.2   61.5   5.0     31.3   12.5   62.3   38.5   64.1   92.5   90.0   10.2  
Rural 89.0   34.9   10.2   8.4   4.0   51.0   2.3     34.0   16.1   60.6   32.6   60.0   94.4   89.0   8.8  
Percent combined enrollment of
      Black, Hispanic, Asian/Pacific
      Islander, or American Indian/
      Alaska Native students
                                                               
Less than 5 percent 95.3   26.4   8.6   7.2     49.6   1.8 !   36.8   14.9   64.0   29.2   63.2   92.3   88.3   #  
5 percent to less than 20 percent 91.4   30.6   5.1   3.9   2.5   67.3     #   25.2   7.2   69.0   30.4   61.5   93.3   88.3   1.8 !
20 percent to less than 50 percent 89.5   48.7   6.7   4.7   7.6   69.8   3.4     23.0   10.0   62.3   38.4   63.5   93.5   92.4   10.6  
50 percent or more 92.1   62.6   5.1   4.0   11.7   60.4   10.9   3.4   15.7   15.7   59.1   40.6   58.3   93.8   92.6   43.5  
Percent of students
      eligible for free or
      reduced-price lunch
                                                               
0–25 91.7   35.5   3.6   2.1   4.5   71.7   1.3     21.0   6.8   73.8   35.9   60.3   91.2   87.6   4.5  
26–50 91.4   39.2   6.5   5.4   5.4   62.5   2.1   0.2 ! 31.5   11.0   65.3   35.0   61.7   94.4   89.2   6.3  
51–75 91.6   47.8   7.7   6.1   7.8   60.5   6.1   1.4   22.8   13.4   61.0   34.3   65.6   93.7   91.6   17.9  
76–100 92.3   61.3   5.3   4.0   9.7   58.5   11.1   3.7   14.3   16.2   53.5   38.8   55.3   93.7   94.9   47.9  
Student/teacher ratio4                                                                
Less than 12 89.0   41.3   10.6   9.0   7.3   51.8   5.4   2.3 ! 26.6   15.7   60.3   34.6   56.0   95.5   89.2   17.2  
12–16 93.1   43.2   6.6   4.8   5.3   67.0   5.0   1.3   23.3   12.1   63.7   35.1   67.1   93.3   91.8   21.2  
More than 16 91.4   50.0   4.0   3.0   8.2   62.9   5.2   1.1 ! 21.3   10.8   63.5   37.0   57.5   92.8   90.6   17.4  
# Rounds to zero.
! Interpret data with caution. The coefficient of variation (CV) for this estimate is 30 percent or greater.
‡ Reporting standards not met. The coefficient of variation (CV) is 50 percent or greater.
1 One or more checks, sweeps, or cameras.
2 For example, drugs or weapons. Does not include dog sniffs.
3 Primary schools are defined as schools in which the lowest grade is not higher than grade 3 and the highest grade is not higher than grade 8. Middle schools are defined as schools in which the lowest grade is not lower than grade 4 and the highest grade is not higher than grade 9. High schools are defined as schools in which the lowest grade is not lower than grade 9 and the highest grade is not higher than grade 12. Combined schools include all other combinations of grades, including K–12 schools.
4 Student/teacher ratio was calculated by dividing the total number of students enrolled in the school by the total number of full-time-equivalent (FTE) teachers. Information regarding the total number of FTE teachers was obtained from the Common Core of Data (CCD), the sampling frame for SSOCS.
NOTE: Responses were provided by the principal or the person most knowledgeable about crime and safety issues at the school. Respondents were instructed to respond only for those times that were during normal school hours or when school activities or events were in session, unless the survey specified otherwise.
SOURCE: U.S. Department of Education, National Center for Education Statistics, 2009–10 School Survey on Crime and Safety (SSOCS), 2010.
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