science

Minneapolis Domestic Violence Experiment

Minneapolis Domestic Violence Experiment is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Minneapolis Domestic Violence Experiment rather than just read about it. In short: The Minneapolis Domestic Violence Experiment (MDVE) evaluated the effectiveness of various police responses to domestic violence calls in Minneapolis, Minnesota. This experiment was implemented during 1981-82 by Lawrence W.

Key takeaways

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Reproduce the core statement of Minneapolis Domestic Violence Experiment from memory before moving on to harder problems.

Reference excerpt

The Minneapolis Domestic Violence Experiment (MDVE) evaluated the effectiveness of various police responses to domestic violence calls in Minneapolis, Minnesota. This experiment was implemented during 1981-82 by Lawrence W. Sherman, Director of Research at the Police Foundation, and by the Minneapolis Police Department with funding support from the National Institute of Justice. Among a pool of domestic violence offenders for whom there was probable cause to make an arrest, the study design called for officers to randomly select one third of the offenders for arrest, one third would be counseled and one third would be separated from their domestic partner. The results of the study, showing a deterrent effect for arrest, had a "virtually unprecedented impact in changing then-current police practices." Subsequently, numerous states and law enforcement agencies enacted policies for mandatory arrest, without warrant, for domestic violence cases in which the responding police officer had probable cause that a crime had occurred.

Background Domestic violence historically has been viewed as a private family matter that need not involve government or criminal justice intervention. Before the early 1970s, police in the United States favored a "hands-off" approach to domestic violence calls, with arrest only used as a last resort. At the time, domestic violence cases were typically classified as misdemeanor assault cases. During the 1970s, many U.S. jurisdictions did not authorize the police to make arrests in any misdemeanor assault, whether it involved a domestic partner or not, unless the assault occurred in the officer's presence. A 1978 court order in New York City mandated that arrests only be made in cases of serious violence, thus officers instead made effort to mediate family disputes. In the early 1970s, clinical psychologists argued that police should make an effort to mediate disputes. Statistics on incidence of domestic violence, published in the late 1970s, helped raise public awareness of the problem and increase activism. A study published in 1976 by the Police Foundation found that the police had intervened at least once in the previous two years in 85 percent of spouse homicides. In the late 1970s and early 1980s, feminists and battered women's advocacy groups were calling on police to take domestic violence more seriously and change intervention strategies. In some instances, these groups took legal action against police departments, including in Oakland, California and New York City, to get them to make arrests in domestic violence cases. They claimed that police assigned low priority to domestic disturbance calls. In 1978, the National Academy of Sciences published a report, Deterrence and Incapacitation: Estimating the Effects of Criminal Sanctions on Crime Rates, which called for more rigorous assessments of policies and practices based on social control theories and use of deterrence for crime control. Based on the academy's recommendations, the National Institute of Justice began funding studies of the deterrent effects of criminal sanctions and, in 1980, one of the sponsored studies was the Minneapolis Domestic Violence Experiment.

The study

Methodology The Minneapolis Domestic Violence Experiment looked at effectiveness of methods used by police to reduce domestic violence. Cases used in the study were misdemeanor assault calls, which make up the bulk of domestic violence calls for service. Both the victim and offender needed to still be present when the police arrived, in order to be included in the study. 51 patrol officers in the Minneapolis Police Department participated in the study. Each was asked to use one of three approaches for handling domestic violence calls, in cases where officers had probable cause to believe an assault had occurred:

Send the abuser away for eight hours. Advice and mediation of disputes. Make an arrest. Interviews were conducted during a 6-month follow-up period, with both victims and offenders, as well as official records consulted to determine whether or not re-offending had occurred. The study lasted approximately 17 months and included 330 cases.

Findings Arrest was found to be the most effective police response. The study found that the offenders assigned to be arrested had lower rates of re-offending than offenders assigned to counseling or temporarily sent away. (19% for arrest, 37% for advice and 34% for Send)

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Minneapolis Domestic Violence Experiment

Start with the simplest possible case. Write down what Minneapolis Domestic Violence Experiment claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Minneapolis Domestic Violence Experiment before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Minneapolis Domestic Violence Experiment ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Minneapolis Domestic Violence Experiment

In research: Minneapolis Domestic Violence Experiment appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Minneapolis Domestic Violence Experiment in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Minneapolis Domestic Violence Experiment is common in secondary-school and first-year university syllabi. It links to neighbouring topics Criminology, Culture of Minneapolis, Domestic violence in the United States, so understanding it makes those chapters shorter.
In everyday life: Look for Minneapolis Domestic Violence Experiment outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Minneapolis Domestic Violence Experiment in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Minneapolis Domestic Violence Experiment means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Minneapolis Domestic Violence Experiment out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Minneapolis Domestic Violence Experiment in simple terms?

Why does Minneapolis Domestic Violence Experiment matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Minneapolis Domestic Violence Experiment?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Minneapolis Domestic Violence Experiment.