Preventing treatment spillover contamination in criminological field experiments: the case of body-worn police cameras

A central issue in experiments is protecting the integrity of causal identification from treatment spillover effects. The objective of this article is to demonstrate a bright line beyond which spillover of treatment renders experimental results misleading. We focus on a highly publicized recent test...

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Detalles Bibliográficos
Autor principal: Ariel, Barak (Autor)
Otros Autores: Sherman, Lawrence W. ; Sutherland, Alex
Tipo de documento: Electrónico Artículo
Lenguaje:Inglés
Publicado: 2019
En: Journal of experimental criminology
Año: 2019, Volumen: 15, Número: 4, Páginas: 569-591
Acceso en línea: Presumably Free Access
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Palabras clave:
Body-worn cameras
Experiments
Interference
Partial interference
SUTVA
Spillover effects
Unit of randomization
Descripción
Sumario:A central issue in experiments is protecting the integrity of causal identification from treatment spillover effects. The objective of this article is to demonstrate a bright line beyond which spillover of treatment renders experimental results misleading. We focus on a highly publicized recent test of police body cameras that violated the key assumption of a valid experiment: independence of treatment conditions for each unit of analysis.
ISSN:1572-8315
DOI:10.1007/s11292-018-9344-4