Table 7. Number and percentage of public primary schools reporting disruptions at school from death threats, bomb threats, or chemical, biological, or radiological threats, the number of incidents reported, and the rate of disruptions per 1,000 students, by selected school characteristics: School year 2005

Crime and Safety Surveys

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Table 7. Number and percentage of public primary schools reporting disruptions at school from death threats, bomb threats, or chemical, biological, or radiological threats, the number of incidents reported, and the rate of disruptions per 1,000 students, by selected school characteristics: School year 2005–06

	Disruptions from death threats, bomb threats, or chemical, biological, or radiological threats
School characteristic	Number of schools		Percent of schools		Number of incidents		Rate per 1,000 students
All public schools	1,910		4		3,360		#

Enrollment size
Less than 300	‡		‡		‡		‡
300–499	990		6		1,990	!	#
500–999	600	!	3	!	930	!	#
1,000 or more	‡		‡		‡		‡

Urbanicity
City	520	!	4	!	930	!	#
Urban fringe	710		4		1,510	!	#
Town	#		#		#		#
Rural	680	!	5	!	910	!	#

Crime level where students live¹
High	250	!	6	!	‡		‡
Moderate	460	!	5	!	630	!	#
Low	1,150		4		1,970		#
Mixed	‡		‡		‡		‡

Percent minority enrollment²
Less than 5 percent	‡		‡		‡		‡
5 to less than 20 percent	350	!	3	!	‡		#
20 to less than 50 percent	240	!	2	!	‡		‡
50 percent or more	1,000		6		1,760	!	#

Percent of students eligible for free or reduced-price lunch
0–20 percent	260	!	2	!	‡		‡
21–50 percent	500	!	4	!	950	!	#
More than 50 percent	1,140		5		2,090		#

Percent of students below 15th percentile on standardized tests
0–5 percent	570	!	3	!	890	!	#
6–15 percent	700	!	4	!	1,120	!	#
More than 15 percent	640	!	6		1,350	!	#

Percent of students likely to attend college
0–35 percent	520	!	4	!	810	!	#
36–60 percent	820	!	5	!	1,810	!	#
More than 60 percent	570	!	3	!	740	!	#

Percent of students who consider academic achievement important
0–25 percent	‡		‡		‡		‡
26–50 percent	560	!	7	!	670	!	#
51–75 percent	‡		‡		‡		‡
More than 75 percent	980		4		2,210	!	#

Percent male enrollment
0–44 percent	#		#		#		#
45–55 percent	1,450		4		2,380		#
More than 55 percent	460	!	7	!	‡		‡

Student-to-FTE ratio³
Less than 12 students	710	!	3	!	1,360	!	#
12–16 students	720	!	5	!	1,300	!	#
More than 16 students	480	!	6	!	700	!	#

Number of classroom changes⁴
0–3 changes	790	!	4	!	1,140	!	#
4–6 changes	730	!	3	!	1,270	!	#
More than 6 changes	390	!	7	!	960	!	#

Regular use of law enforcement⁵
Regular use	450	!	3	!	560	!	#
No regular use	1,460		4		2,800	!	#

Number of serious discipline problems⁶
No problems	1,290		4		2,180		#
1 problem	290	!	5	!	400	!	#
2 problems	250	!	7	!	‡		‡
3 or more problems	‡		‡		‡		‡

Transfers as a percentage of enrollment⁷
Less than 6 percent	#		#		#		#
6 to less than 11 percent	720	!	7		900	!	#
11 to less than 21 percent	510	!	4	!	1,070	!	#
21 percent or more	680		4		1,390	!	#

Percent of students absent on a daily basis
0–2 percent	330	!	5	!	380	!	#
3–5 percent	980		4		1,750	!	#
6–10 percent	530	!	5	!	1,160	!	#
More than 10 percent	‡		‡		‡		‡

Prevalence of violent incidents⁸
No violent incidents	‡		‡		‡		‡
Any violent incidents	1,740		5		3,020		#
# Rounds to zero.
! Interpret data with caution. The standard error for this estimate is from 30 percent to 50 percent of the estimate’s value.
‡ Reporting standards not met. The standard error for this estimate is equal to 50 percent or more of the estimate's value.
¹ Respondents were asked, "How would you describe the crime level in the area(s) in which your students live?" Response options included "high level of crime," "moderate level of crime," "low level of crime," and "students come from areas with very different levels of crime."
² Responding schools that did not have race/ethnicity on the sampling frame (2 percent of schools) are excluded from the base.
³ Student-to-FTE ratio was calculated by dividing the total number of students enrolled in the school by the total number of full-time-equivalent teachers and aides. The total number of full-time-equivalent teachers and aides is a combination of the full-time and part-time teachers and aides, including special education teachers and aides, with an adjustment to compensate for the part-time status.
⁴ Respondents were asked, "How many classroom changes do most students make in a typical day?" Responses exclude morning arrival and afternoon departure.
⁵ Respondents were asked, "During the 2005–2006 school year, did you have any sworn law enforcement officers, security guards, or security personnel present at your school at least once a week?"
⁶ Serious discipline problems include student racial tensions, student bullying, student sexual harassment of other students, student verbal abuse of teachers, widespread disorder in classrooms, student acts of disrespect for teachers, gang activities, and cult or extremist group activities. If a respondent reported that any of these problems occurred daily or weekly in their school, each was counted once in the total number of serious discipline problems.
⁷ Transfers as a percentage of enrollment combines the number of students who were transferred to a school and the number of students who were transferred from a school divided by the total number of students enrolled in the school.
⁸ Violent incidents include rape or attempted rape, sexual battery other than rape, physical attack or fight with or without a weapon, threat of physical attack with or without a weapon, and robbery with or without a weapon.
NOTE: "At school" was defined for respondents to include activities happening in school buildings, on school grounds, on school buses, and at places that hold school-sponsored events or activities. Detail may not sum to totals because of rounding. Responses were provided by the principal or the person most knowledgeable about crime and safety issues at the school. 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.
SOURCE: U.S. Department of Education, National Center for Education Statistics (NCES), 2005–06 School Survey on Crime and Safety (SSOCS), 2006.

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