Appendix B: Glossary of Terms

General Terms

Cluster sampling

Cluster sampling is a technique in which the sampling of respondents or subjects occurs within clusters or groups. For example, selecting students by sampling schools and the students that attend that school.

Crime

Any violation of a statute or regulation or any act that the government has determined is injurious to the public, including felonies and misdemeanors. Such violation may or may not involve violence, and it may affect individuals or property.

Incident

A specific criminal act or offense involving one or more victims and one or more offenders.

Multistage sampling

A survey sampling technique in which there is more than one wave of sampling. That is, one sample of units is drawn, and then another sample is drawn within that sample. For example, at the first stage, a number of Census blocks may be sampled out of all the Census blocks in the United States. At the second stage, households are sampled within the previously sampled Census blocks.

Prevalence

The percentage of the population directly affected by crime in a given period. This rate is based upon specific information elicited directly from the respondent regarding crimes committed against his or her person, against his or her property, or against an individual bearing a unique relationship to him or her. It is not based upon perceptions and beliefs about, or reactions to, criminal acts.

School

An education institution consisting of one or more of grades K through 12.

School crime

Any criminal activity that is committed on school property.

School year

The 12-month period of time denoting the beginning and ending dates for school accounting purposes, usually from July 1 through June 30.

Stratification

A survey sampling technique in which the target population is divided into mutually exclusive groups or strata based on some variable or variables (e.g., metropolitan area) and sampling of units occurs separately within each stratum.

Unequal probabilitie

A survey sampling technique in which sampled units do not have the same probability of selection into the sample. For example, the investigator may oversample minority students in order to increase the sample sizes of minority students. Minority students would then be more likely than other students to be sampled.

Specific Terms Used in Various Surveys

School-Associated Violent Deaths Surveillance Study

Homicide

An act involving a killing of one person by another resulting from interpersonal violence.

School-associated violent death

A homicide or suicide in which the fatal injury occurred on the campus of a functioning elementary or secondary school in the United States, while the victim was on the way to or from regular sessions at such a school, or while the victim was attending or traveling to or from an official school-sponsored event. Victims included nonstudents as well as students and staff members.

Suicide

An act of taking one's own life voluntarily and intentionally.

National Crime Victimization Survey

Aggravated assault

Attack or attempted attack with a weapon, regardless of whether or not an injury occurs, and attack without a weapon when serious injury results.

At school (students)

Inside the school building, on school property (school parking area, play area, school bus, etc.), or on the way to or from school.

At school (teachers)

Inside the school building, on school property (school parking area, play area, school bus, etc.), at worksite, or while working. For thefts, "while working" was not considered, since thefts of teachers' property kept at school can occur when teachers are not present.

Rape

Forced sexual intercourse including both psychological coercion, as well as physical force. Forced sexual intercourse means vaginal, anal, or oral penetration by the offender(s). Includes attempts and verbal threats of rape. This category also includes incidents where the penetration is from a foreign object such as a bottle.

Robbery

Completed or attempted theft, directly from a person, of property or cash by force or threat of force, with or without a weapon, and with or without injury.

Rural

A place not located inside the Metropolitan Statistical Area (MSA). This category includes a variety of localities, ranging from sparsely populated rural areas to cities with populations of less than 50,000.

Serious violent crime

Rape, sexual assault, robbery, or aggravated assault.

Sexual assault

A wide range of victimizations, separate from rape or attempted rape. These crimes include attacks or attempted attacks generally involving unwanted sexual contact between the victim and offender. Sexual assault may or may not involve force and includes such things as grabbing or fondling. Sexual assault also includes verbal threats.

Simple assault

Attack without a weapon resulting either in no injury, minor injury, or an undetermined injury requiring less than 2 days of hospitalization. Also includes attempted assault without a weapon.

Suburban

A county or counties containing a central city, plus any contiguous counties that are linked socially and economically to the central city. On the data tables, suburban areas are categorized as those portions of metropolitan areas situated "outside central cities."

Theft

Completed or attempted theft of property or cash without personal contact.

Urban

The largest city (or grouping of cities) in an MSA.

Victimization

A crime as it affects one individual person or household. For personal crimes, the number of victimizations is equal to the number of victims involved. The number of victimizations may be greater than the number of incidents because more than one person may be victimized during an incident.

Victimization rate

A measure of the occurrence of victimizations among a specifi c population group.

Violent crime

Rape, sexual assault, robbery, aggravated assault, or simple assault.

School Crime Supplement

At school

In the school building, on school property, on a school bus, or going to or from school.

Serious violent crime

Rape, sexual assault, robbery, or aggravated assault.

Total victimization

Combination of violent victimization and theft. If a student reported an incident of either type, he or she is counted as having experienced any victimization. If the student reported having experienced both, he or she is counted once under "total victimization."

Violent crime

Rape, sexual assault, robbery, aggravated assault, or simple assault.

Youth Risk Behavior Survey

Illegal drugs

Examples of illegal drugs were marijuana, cocaine, inhalants, steroids, or prescription drugs without a doctor's permission, heroin, and methamphetamines.

On school property

On school property is included in the question wording, but was not defined for respondents.

Rural school

is located outside a Metropolitan Statistical Area (MSA).

Suburban school

is located inside a MSA, but outside the "central city."

Urban school

is located inside a MSA and inside the "central city."

Weapon

Examples of weapons appearing in the questionnaire include guns, knives, and clubs.

Schools and Staffing Survey

Central city

A large central city (a central city of a Metropolitan Statistical Area [MSA] with population greater than or equal to 400,000, or a population density greater than or equal to 6,000 per square mile) or a mid-size central city (a central city of an MSA, but not designated as a large central city).

Elementary school

A school in which the lowest grade is less than or equal to grade 6 and the highest grade is less than or equal to grade 8.

Elementary school teachers

An elementary school teacher is one who, when asked for the grades taught, checked: (1) only "ungraded" and was designated as an elementary teacher on the list of teachers provided by the school; (2) 6th grade or lower, and no grade higher than 6th; (3) 6th grade or lower and 7th grade or higher, and reported a primary assignment of prekindergarten, kindergarten, or general elementary; (4) 7th and 8th grades only, and reported a primary assignment of prekindergarten, kindergarten, or general elementary; (5) 6th grade or lower and 7th grade or higher, and reported a primary assignment of special education and was designated as an elementary teacher on the list of teachers provided by the school; or (6) 7th and 8th grades only, and reported a primary assignment of special education and was designated as an elementary teacher on the list of teachers provided by the school. A teacher at school that has grade 6 or lower, or one that is "ungraded" with no grade higher than the 8th.

Rural or small town

Rural area (a place with a population of less than 2,500 and defined as rural by the U.S. Bureau of the Census) or a small town (a place not within an Metropolitan Statistical Area, with a population of less than 25,000, but greater than or equal to 2,500, and defined as nonurban by the U.S. Bureau of the Census).

Secondary school

A school in which the lowest grade is greater than or equal to grade 7 and the highest grade is less than or equal to grade 12.

Secondary school teachers

A secondary school teacher is one who, when asked for the grades taught, checked: (1) "ungraded" and was designated as a secondary teacher on the list of teachers provided by the school; (2) 6th grade or lower and 7th grade or higher, and reported a primary assignment other than prekindergarten, kindergarten, or general elementary; (3) 9th grade or higher, or 9th grade or higher and "ungraded"; (4) 7th and 8th grades only, and reported a primary assignment other than prekindergarten, kindergarten, general elementary, or special education; (5) 7th and 8th grades only, and reported a primary assignment of special education and was designated as a secondary teacher on the list of teachers provided by the school; or (6) 6th grade or lower and 7th grade or higher, or 7th and 8th grades only, and was not categorized above as either elementary or secondary.

Urban fringe or large town

Urban fringe of a large or mid-size city (a place within an Metropolitan Statistical Area (MSA) of a mid-size central city and defi ned as urban by the U.S. Bureau of the Census) or a large town (a place not within an MSA, but with a population greater or equal to 25,000 and defi ned as urban by the U.S. Bureau of the Census).

School Survey on Crime and Safety

At school/at your school

Includes activities that happened in school buildings, on school grounds, on school buses, and at places that held school-sponsored events or activities. Unless otherwise specifi ed, respondents were requested to report on activities that occurred during normal school hours or when school activities/events were in session.

Combined schools

Schools that include all combinations of grades, including K–12 schools, other than primary, middle, and secondary schools (see defi nitions for these school levels later in this section).

Cult or extremist group

A group that espouses radical beliefs and practices, which may include a religious component, that are widely seen as threatening the basic values and cultural norms of society at large.

Firearm/explosive device

Any weapon that is designed to (or may readily be converted to) expel a projectile by the action of an explosive. This includes guns, bombs, grenades, mines, rockets, missiles, pipe bombs, or similar devices designed to explode and capable of causing bodily harm or property damage.

Gang

An ongoing loosely organized association of three or more persons, whether formal or informal, that has a common name, signs, symbols, or colors, whose members engage, either individually or collectively, in violent or other forms of illegal behavior.

Insubordination

A deliberate and inexcusable defiance of or refusal to obey a school rule, authority, or a reasonable order. It includes but is not limited to direct defiance of school authority, failure to attend assigned detention or on-campus supervision, failure to respond to a call slip, and physical or verbal intimidation/abuse.

Intimidation

To frighten, compel, or deter by actual or implied threats. It includes bullying and sexual harassment.

Middle school

A school in which the lowest grade is not lower than grade 4 and the highest grade is not higher than grade 9. Physical attack or fight An actual and intentional touching or striking of another person against his or her will, or the intentional causing of bodily harm to an individual.

Primary school

A school in which the lowest grade is not higher than grade 3 and the highest grade is not higher than grade 8.

Rape

Forced sexual intercourse (vaginal, anal, or oral penetration). Includes penetration from a foreign object.

Robbery

The taking or attempting to take anything of value that is owned by another person or organization, under confrontational circumstances by force or threat of force or violence and/or by putting the victim in fear. A key difference between robbery and theft/ larceny is that a threat or battery is involved in robbery.

Secondary school

A school in which the lowest grade is not lower than grade 9 and the highest grade is not higher than grade 12.

Serious violent incidents

Include rape, sexual battery other than rape, physical attacks or fights with a weapon, threats of physical attack with a weapon, and robbery with or without a weapon.

Sexual battery

An incident that includes threatened rape, fondling, indecent liberties, child molestation, or sodomy. Principals were instructed that classification of these incidents should take into consideration the age and developmentally appropriate behavior of the offenders.

Sexual harassment

Unsolicited, offensive behavior that inappropriately asserts sexuality over another person. The behavior may be verbal or nonverbal.

Specialized school

A school that is specifically for students who were referred for disciplinary reasons. The school may also have students who were referred for other reasons. The school may be at the same location as the respondent's school.

Theft/larceny

Taking things over $10 without personal confrontation. Specifically, the unlawful taking of another person's property without personal confrontation, threat, violence, or bodily harm. Included are pocket picking, stealing purse or backpack (if left unattended or no force was used to take it from owner), theft from a building, theft from a motor vehicle or motor vehicle parts or accessories, theft of bicycles, theft from vending machines, and all other types of thefts.

Urbanicity

As collected by the Common Core of Data and appended to the SSOCS data file, city includes large cities and mid-size cities, urban fringe includes urban fringe of large and mid-sized cities, town includes large and small towns, and rural includes rural outside a MSA and inside a MSA.

Vandalism

The willful damage or destruction of school property including bombing, arson, graffi ti, and other acts that cause property damage. Includes damage caused by computer hacking.

Violent incidents

Include rape, sexual battery other than rape, physical attacks or fights with or without a weapon, threats of physical attack with or without a weapon, and robbery with or without a weapon.

Weapon

Any instrument or object used with the intent to threaten, injure, or kill. Includes look-alikes if they are used to threaten others.