Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Hypothesis Test for Test of Independence01:16

Hypothesis Test for Test of Independence

5.5K
The test of independence is a chi-square-based test used to determine whether two variables or factors are independent or dependent. This hypothesis test is used to examine the independence of the variables. One can construct two qualitative survey questions or experiments based on the variables in a contingency table. The goal is to see if the two variables are unrelated (independent) or related (dependent). The null and alternative hypotheses for this test are:
H0: The two variables (factors)...
5.5K
Social Traps01:41

Social Traps

24.8K
Social traps are negative situations where people get caught in a direction or relationship that later proves to be unpleasant, with no easy way to back out of or avoid. The concept was orignally introduced by John Platt who applied psychology to Garrett Hardin's "Tragedy of the Commons", where in New England herd owners could let their cattle graze in the common ground. This situation seems like a good idea, but an individual could have an advantage. If they owned...
24.8K
Bystander Effect02:09

Bystander Effect

9.9K
The discussion of bullying highlights the problem of witnesses not intervening to help a victim. This is a common occurrence, as the following well-publicized event demonstrates. In 1964, in Queens, New York, a 19-year-old woman named Kitty Genovese was attacked by a person with a knife near the back entrance to her apartment building and again in the hallway inside her apartment building. When the attack occurred, she screamed for help numerous times and eventually died from her stab wounds.
9.9K
The Anchoring-and-Adjustment Heuristic01:25

The Anchoring-and-Adjustment Heuristic

7.5K
In order to make good decisions, we use our knowledge and our reasoning. Often, this knowledge and reasoning is sound and solid. However, sometimes, we are swayed by biases or by others manipulating a situation. For example, let’s say you and three friends wanted to rent a house and had a combined target budget of $1,600. The realtor shows you only very run-down houses for $1,600 and then shows you a very nice house for $2,000. Might you ask each person to pay more in rent to get the...
7.5K
Collisions in Multiple Dimensions: Problem Solving01:06

Collisions in Multiple Dimensions: Problem Solving

4.6K
In multiple dimensions, the conservation of momentum applies in each direction independently. Hence, to solve collisions in multiple dimensions, we should write down the momentum conservation in each direction separately. To help understand collisions in multiple dimensions, consider an example.
A small car of mass 1,200 kg traveling east at 60 km/h collides at an intersection with a truck of mass 3,000 kg traveling due north at 40 km/h. The two vehicles are locked together. What is the...
4.6K
Survey Safety01:28

Survey Safety

238
Surveying near highways, rough terrain, or power lines involves significant risks. Working along highways is particularly dangerous and requires the use of warning signs and flagmen. It is safest to avoid working directly on roads and use offsets whenever possible. When highway work is unavoidable, it must follow all safety guidelines. Surveyors should wear bright clothing, such as orange reflective vests, to ensure visibility to motorists, coworkers, and hunters. In construction zones, wearing...
238

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

STS Expert Consensus Document (2026) on Addressing Definition and Practices of Sublobar Resection in Non-small Cell Lung Cancer.

The Annals of thoracic surgery·2026
Same author

Intercostal Nerve Cryoablation Therapy in Thoracic and Cardiac Surgery for Postoperative Pain Management: A Systematic Review and Meta-Analysis.

Interdisciplinary cardiovascular and thoracic surgery·2026
Same author

The 2026 American Association for Thoracic Surgery (AATS) expert consensus document: Surgical management of primary chest wall malignancies.

The Journal of thoracic and cardiovascular surgery·2026
Same author

Cut, Clip, Burn: A Combined Approach to Lung Cancer and Atrial Fibrillation.

Annals of thoracic surgery short reports·2026
Same author

REPLY: Failure to rescue after esophagectomy.

JTCVS open·2026
Same author

Comparing Nodal Upstaging Rates and Morbidity and Mortality of Common Nodal Sampling Guidelines in the STS General Thoracic Surgery Database.

The Annals of thoracic surgery·2026

Related Experiment Video

Updated: Nov 1, 2025

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street
14:55

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street

Published on: January 20, 2023

3.8K

Traffic stops do not prevent traffic deaths.

Anuja L Sarode1, Vanessa P Ho, Lin Chen

  • 1From the Research in Surgical Outcomes and Effectiveness, Department of Surgery (A.L.S., L.C., K.C.B., P.A.L., M.L.M., C.W.T.), University Hospitals Cleveland Medical Center; Case Western Reserve University School of Medicine (V.P.H., L.C., K.C.B., P.A.L., A.M.L., M.L.M., C.W.T.); Division of Trauma, Critical Care, Burns, & Acute Care Surgery, Department of Surgery (V.P.H., A.M.L.), MetroHealth Medical Center, Cleveland, Ohio.

The Journal of Trauma and Acute Care Surgery
|June 18, 2021
PubMed
Summary
This summary is machine-generated.

Police traffic stops (PTSs) do not reduce motor vehicle crash (MVC) deaths. Alternative strategies are needed to prevent fatalities on roadways.

More Related Videos

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research
07:15

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research

Published on: December 18, 2020

4.7K
Using a Virtual Reality Walking Simulator to Investigate Pedestrian Behavior
06:38

Using a Virtual Reality Walking Simulator to Investigate Pedestrian Behavior

Published on: June 9, 2020

5.0K

Related Experiment Videos

Last Updated: Nov 1, 2025

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street
14:55

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street

Published on: January 20, 2023

3.8K
Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research
07:15

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research

Published on: December 18, 2020

4.7K
Using a Virtual Reality Walking Simulator to Investigate Pedestrian Behavior
06:38

Using a Virtual Reality Walking Simulator to Investigate Pedestrian Behavior

Published on: June 9, 2020

5.0K

Area of Science:

  • Public Health
  • Epidemiology
  • Traffic Safety Research

Background:

  • Growing calls for police reform necessitate evaluating the effectiveness of public safety measures.
  • Understanding the impact of police traffic stops (PTSs) on preventing motor vehicle crash (MVC) deaths is crucial.

Purpose of the Study:

  • To examine the relationship between state-level police traffic stops (PTSs) and motor vehicle crash (MVC) deaths.
  • To determine if increased PTSs are associated with a reduction in MVC fatalities.

Main Methods:

  • Retrospective analysis of state-level data from 2004-2016.
  • Utilized data on PTSs from 33 state patrols and MVC deaths from NHTSA.
  • Employed panel data analysis, adjusting for vehicle miles traveled and state/time variations.

Main Results:

  • Analysis included over 161 million PTSs across 33 state patrols.
  • Significant variation in PTS and MVC death rates observed across states and years.
  • No statistically significant association was found between PTS rates and MVC death rates.

Conclusions:

  • State-level police traffic stops are not associated with reduced motor vehicle crash deaths.
  • Alternative strategies, including vehicle safety, community initiatives, and healthcare access, should be prioritized for MVC death prevention.