School Shooting Database and Propaganda

What you name something is very important. One might look upon their congressman and say “politician”. Someone else might look upon the same representative and say “insufferable, deranged, syphilitic git”. Both might be accurate.

Important then is the “School Shooting Database” hosted by the Federal Government as part of the Department of Homeland Defense. The phrase “school shooting” creates in the mind of the reader some very specific notions. For the average American, it means mass homicide events like Parkland, Sandy Hook and Columbine. It does not mean a stray bullet from a inter-gang confrontation two blocks away at two in the morning.

Honest Disclosure, Noble Purpose, Clumsy Word Use

Per the project’s web site, “The K-12 School Shooting Database research project is a widely inclusive database that documents each and every instance a gun is brandished, is fired, or a bullet hits school property for any reason, regardless of the number of victims, time, day of the week, or reason.” (emphasis ours)

This will take some unpacking.

First, let’s note the alleged cause behind the project – the better understand a form of threat on public school children – is an honorable one. We all want to make sure kids do not face fatal situations. But two problems immediately present themselves:

AMALGAMATION: By capturing a broad array of situations – ranging from off hours adult suicides, to gang activity, to actual campus shootings – the project creates misleading summaries ripe for exploitation by those who lie for a living. Indeed, the propagandists at The Trace jumped on the headline numbers without a wit of analysis to separate the sundry rows of data (such rigors would be a poor use of Michael Bloomberg’s money as it might expose a truth).

HEADLINE ABUSE: Reporters (as opposed to journalists) will be quite willing to echo such inaccurate headline numbers, for reporters don’t have the time or statistical chops to download the database (it is publicly available, for which I give the maintainers brownie points) and perform even simplistic sorting, pivot tables, and subsequent analysis.

The next effect is that this database will be misused, abused, miscited, misquoted, and generally buggered in order to advance political agendas. Indeed, if you do little more than read this post, contact your congress critter and ask them to have the project renamed so as to reduce media confusion (seriously, “School Shooting Database” is exactly the wrong name).

Campus Calcs

LocationIncidentsPercent
Outside on School Property66951%
Inside School Building58845%
School Bus353%
Unknown151%
Off School Property91%

A good first look at the data would be to see if Dick and Jane are sitting ducks while in the care of your county school board.

The table at right shows that the majority of “school shootings” over the last 48 years occur outside while on school campus. When tied in with non-shooting “school shooting” definitions, such as brandishing, we get a very different picture. By this project’s definitions, if someone on the sidewalk outside the school brandished a gun, that was a “school shooting”. Three percent of “school shootings” in the database involve no shots being fired at all. And if we include single shots (regardless of from where they came, or if they were suicides, or if they were late at night, etc.) those add up to 63% of all incidents.

CircumstanceIncidentsPercent
Escalation of Dispute35427%
Gang-related16412%
Accidental14911%
Unknown13610%
Suicide/Attempted1209%
Domestic w/ Targeted Victim635%
Indiscriminate Shooting534%
Anger Over Grade/Suspension/Discipline383%
Robbery383%
Bullying363%
Mental Health322%
Hostage Standoff302%
Murder/Suicide262%
Officer Involved Shooting212%
Intentional Property Damage151%
Racial151%
Illegal Drug Related131%
Murder81%
Self Defense40%
Murder/Suicide10%

“Circumstances” are a well-known problem in criminology data quality. The FBI’s Uniform Crime Reporting (UCR) system shows “arguments” as being the leading knowable cause of firearm homicides. But any metro-area detective will tell you the many, perhaps most of inner-city homicide “arguments” were likely gang disputes, but rules require them to log the event as an argument if shouting was heard, but nobody was certain about the nature of the argument.

As the “school shooting” database shows, most incidents were due to the escalation of a dispute (similar to “arguments” in UCR parlance), followed by gang involvement. How many of the escalated disputes were over inter-gang conflicts is not knowable from this database, but the ratio is likely large.

Digging a bit more, we discover that a full 30% of all entries in the database do not conform to the public perception of a “school shooting”. When we define this as (a) being on campus or on a school bus and (b) during school hours, nearly a third of the incidents become disqualified. Now, they may still have a bearing on child protection. A school in a tough neighborhood where kids get shot on the sidewalk outside during the day is a problem. But that same school and location at o-dark-thirty is a different matter.

CategoryOn CampusOff CampusDiff
Escalation of Dispute24%33%38%
Gang-related9%20%111%
Unknown9%12%28%
Domestic w/ Targeted Victim4%6%47%
Suicide/Attempted11%5%-49%
Accidental14%5%-65%
Robbery2%4%74%
Indiscriminate Shooting5%2%-64%
Officer Involved Shooting1%2%39%
Intentional Property Damage1%2%79%
Murder0%2%616%
Murder/Suicide2%2%-32%
Anger Over Grade/Suspension/Discipline4%1%-64%
Bullying4%1%-67%
Illegal Drug Related1%1%49%
Racial1%1%19%
Self Defense0%1%616%
Hostage Standoff3%1%-83%
Mental Health3%1%-84%

This actually matters a lot. The most frequent outdoor “school shootings” are gang-related, and quite likely escalations involving inter-gang conflicts. Outdoors, the rate of these two categories is 38-111% higher than on campus and during school hours. Hence, any analysis using this database has to separate the two, otherwise you are mixing significantly dissimilar cause+location+time elements.

Skipping past gang related issues, we find the most common on campus and during school hours incidents to be from suicides and accidents. Other criminology reviews of kids carrying guns onto school yards shows that many or most do so for self-protection, and that is largely within inner-cities and a reaction to gang violence. With accidental shootings topping the list of on campus and during school hours shootings, we can safely assume that the rate of accidental shootings would decline if the threat of gang violence dropped first (e.g., fewer kids would take a gun to school for self-protection, and thus cause an accident with it).

Another wrinkle is when on campus school hour shootings occur. Since most such events occur in high schools, it helps to look at population scaled incidents by state. Our old friend Washington D.C. tops the charts (by a huge margin) for both the total number of shootings but also for gang related shootings.

On-campus shooting grades 9-12 1970-2018

What to do … and not to do

This database will be useful, but not in the hands of agitprop groups or any garden variety reporter suffering from innumeracy.  When someone cites the Department of Homeland Defense’s School Shooting Database, immediately ask the person:

  • Are those numbers on campus, off campus or both?
  • Are those numbers during school hours, after or both?
  • Are those students, non-students or both?
  • Are those homicides, suicides, accidents, or officer shootings?
  • Which spread sheet did you use when analyzing the data from this database?
  • What is 2+3?

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