A quasi-experimental evaluation using roadblocks and automatic license plate readers to reduce crime in Buffalo, NY

2017 ◽  
Vol 31 (1) ◽  
pp. 190-207 ◽  
Author(s):  
Andrew P. Wheeler ◽  
Scott W. Phillips
Keyword(s):  
Experimental Evaluation ◽  
License Plate ◽  
Quasi Experimental ◽  
License Plate Readers

Estimating the Effects of Police Technology Using Quasi-Experimental Methods

2017 ◽  
Vol 8 (3) ◽  
pp. 360-368 ◽  
Author(s):  
Jillian B. Carr
Keyword(s):  
Law Enforcement ◽  
Public Safety ◽  
License Plate ◽  
Law Enforcement Agencies ◽  
Difference In Differences ◽  
The Public ◽  
Fast Pace ◽  
Quasi Experimental ◽  
Police Technology ◽  
License Plate Readers

Law enforcement agencies are adopting a variety of new surveillance technologies at a fast pace. These technologies could have substantial benefits in terms of public safety, but, for many of them, their ability to reduce crime is unknown. Although a small experimental literature addresses some of these technologies, many of the implementations have been too small to provide an accurate measurement of their potential. In this paper, I explore the advantages and make general suggestions about the use of quasi-experimental methodologies in estimating the public safety benefits of police technology. I also consider the specific case of license plate readers and provide some examples of difference-in-differences approaches that could be used to study their efficacy.

Evaluation of a Mystery Shopper Intervention to Reduce Sales of Alcohol to Minors in Zacatecas and Guadalupe, Mexico

2020 ◽  
pp. 004723792098177
Author(s):  
Mallie J. Paschall ◽  
Joel W. Grube ◽  
Ted R. Miller ◽  
Christopher L. Ringwalt ◽  
Deborah A. Fisher ◽  
...  
Keyword(s):  
Experimental Evaluation ◽  
Middle Income ◽  
Middle Income Countries ◽  
Convenience Stores ◽  
Quasi Experimental ◽  
Mystery Shopper ◽  
Low And Middle Income

We report the results of a quasi-experimental evaluation of a mystery shopper intervention in Zacatecas and Guadalupe, Mexico. Underage youth attempted to purchase beer at 50 Modelorama stores and 32 Oxxo stores (intervention groups), and at 19 comparison convenience stores in March, July, and August 2018. After each attempt, intervention store operators were informed if a sale was made. Modelorama operators also received training and were warned that repeated sales to minors could jeopardize their franchise. Average sales rates to minors were 63.8% at Modeloramas, 86.5% at Oxxo stores, and 98.2% at comparison stores. The findings suggest that mystery shopper interventions with training, feedback to store operators, and sanctions after repeated sales to underage youth may reduce sales to minors in low- and middle-income countries.

scholarly journals A quasi-experimental evaluation of compliant flooring in a residential care setting

PLoS ONE ◽  
2018 ◽  
Vol 13 (7) ◽  
pp. e0201290 ◽  
Author(s):  
Johanna Gustavsson ◽  
Carl Bonander ◽  
Finn Nilson
Keyword(s):  
Residential Care ◽  
Experimental Evaluation ◽  
Care Setting ◽  
Quasi Experimental ◽  
Residential Care Setting
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