Table 7. Number and percentage of public secondary schools reporting disruptions for bomb or anthrax threats with the number of incidents reported, by selected school characteristics: 1999

School Survey on Crime and Safety (SSOCS)

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Table 7. Number and percentage of public secondary schools reporting disruptions for bomb or anthrax threats with the number of incidents reported, by selected school characteristics: 1999–2000

School characteristic	Number of schools	Percent of schools	Number of incidents
All public secondary schools	2,838	24	5,475

Enrollment size
Less than 300	160	8	160
300–499	376	20	640
500–999	784	25	1,292
1,000 or more	1,518	31	3,383

Urbanicity
City	876	37	1,932
Urban fringe	1,054	28	1,826
Town	424	24	764
Rural	485	13	953

Crime level where students live¹
High	159	34	290
Moderate	686	36	1,290
Low	1,656	21	2,951
Mixed	315	21	921

Percent minority enrollment¹
0–5 percent	569	15	1,152
6–20 percent	608	22	909
21–50 percent	787	31	1,607
More than 50 percent	874	33	1,808

Percent of students eligible for free/reduced-price lunch
0–20 percent	1,114	23	2,244
21–50 percent	1,135	24	2,220
More than 50 percent	589	25	1,011

Percent of students below 15^th percentile on standardized tests
0–5 percent	746	22	1,253
6–15 percent	1,191	22	2,200
More than 15 percent	901	31	2,023

Percent of students likely to attend college
0–35 percent	651	25	1,305
36–60 percent	857	23	1,841
More than 60 percent	1,330	24	2,330

Percent of students who consider academic achievement important
0–25 percent	162	18	285
26–50 percent	613	24	1,017
51–75 percent	1,040	26	2,515
More than 75 percent	1,023	23	1,658

Percent male enrollment
0–44 percent	304	27	460
45–55 percent	2,316	24	4,594
More than 55 percent	218	23	422

Student/teacher ratio¹,²
Less than 12	767	22	1,280
12–16	937	23	1,643
More than 16	1,010	29	2,354

Number of classroom changes¹
0–3 changes	109	23	235
4–6 changes	1,552	27	2,966
More than 6 changes	982	21	1,927

Use of paid law enforcement³
Regular use	2,785	26	5,408
No regular use	53	4	67

Number of serious discipline problems⁴
No problems	853	17	1,541
1 problem	660	25	1,512
2 problems	553	27	1,201
3 or more problems	772	33	1,221

Transfers as percentage of enrollment¹,⁵
0 to 6 percent	715	18	1,092
6 to 11 percent	586	22	1,255
11 to 21 percent	686	29	1,107
21 percent or more	739	32	1,801

Percent of students absent without excuses
None	141	13	329
1–2 percent	595	15	1,045
3–5 percent	936	26	1,516
6–10 percent	796	34	1,614
More than 10 percent	371	38	972

Prevalence of violent incidents
No violent incidents	273	28	439
Any violent incidents	2,525	23	4,978
¹ Some schools are omitted from these categories because of missing data on their school characteristics. For this reason, the detailed results do not sum to the totals. See appendix J of 2000 School Survey on Crime and Safety (SSOCS) Detailed Data Documentation (NCES 2004-307) for further information.
² Student/teacher ratio was calculated by dividing the total number of students enrolled in the school by the total number of full-time equivalent teachers. The total number of full-time equivalent teachers is a combination of the full-time and part-time teachers, including special education teachers, with an adjustment to compensate for the part-time status.
³ Schools were included as regularly using paid law enforcement if they reported the use of paid law enforcement during any of the following times: at any time during school hours, while students were arriving or leaving, at selected school activities (e.g., athletic and social events, open houses, science fairs), or at any other time that the respondent specified.
⁴ Serious discipline problems is a count of discipline problems reported by principals. These discipline problems include student racial tensions, student bullying, student verbal abuse of teachers, widespread disorder in classrooms, and student acts of disrespect for teachers. If a principal 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. Undesirable gang activities and undesirable cult or extremist group activities were also counted once as a problem if the principal reported that these events occurred at all in their school.
⁵ 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.
NOTE: Detail may not sum to totals because of rounding. "At school/at your school" was defined for respondents as including activities happening in school buildings, on school grounds, on school buses, and at places that are holding school-sponsored events or activities. Respondents were instructed to, unless the survey specified otherwise, only respond for those times that were during normal school hours or when school activities/events were in session. Bomb or anthrax threats were defined for respondents as bomb scares, anthrax scares, or comparable school wide threats (not including fire). Secondary 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.
SOURCE: U.S. Department of Education, National Center for Education Statistics, School Survey on Crime and Safety (SSOCS), 2000.

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