Information Nudges and Domestic Violence: An Experimental Intervention in the Field

Last registered on May 09, 2024

Pre-Trial

Trial Information

General Information

Title
Information Nudges and Domestic Violence: An Experimental Intervention in the Field
RCT ID
AEARCTR-0013510
Initial registration date
April 26, 2024

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
May 09, 2024, 1:05 PM EDT

First published corresponds to when the trial was first made public on the Registry after being reviewed.

Locations

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Primary Investigator

Affiliation
University of Bologna

Other Primary Investigator(s)

Additional Trial Information

Status
On going
Start date
2023-12-15
End date
2024-12-31
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
Governments frequently employ information campaigns to combat domestic violence. Despite the prevalence of these information nudges, there is little evidence in the literature that can speak to their effectiveness. The study employs a survey experiment where participants are (i) presented with vignettes systematically varying descriptions of situations involving physical violence or stalking by an intimate partner to assess respondents’ beliefs, attitudes, and intended behaviors regarding the presented scenarios; (ii) randomly assigned with equal probability to either the nudge group or the no-information group. The nudge group receives information against domestic violence typical of governmental campaigns. The study investigates (i) whether a governmental campaign designed to counter domestic violence reduces the justifiability and perceived severity of domestic violence; (ii) whether such a campaign increases trust in institutions to assist victims of domestic violence; (iii) whether it enhances awareness of support networks for victims; (iv) whether it increases the perception of escaping violence; and (v) whether these effects are more pronounced when violence is more explicit (physical violence versus stalking). Lastly, the study defines the population of compliers based on within-couple declared and actual differences in gender norms.
External Link(s)

Registration Citation

Citation
Pisanelli, Elena. 2024. "Information Nudges and Domestic Violence: An Experimental Intervention in the Field." AEA RCT Registry. May 09. https://doi.org/10.1257/rct.13510-1.0
Sponsors & Partners

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Experimental Details

Interventions

Intervention(s)
see experimental design
Intervention Start Date
2023-12-15
Intervention End Date
2024-12-31

Primary Outcomes

Primary Outcomes (end points)
the primary outcomes are justifiability, accountability and perceived severity of domestic violence, trust in institutions to assist victims of domestic violence, personal willingness to support victims of violence, awareness of networks supporting victims, perception of escaping violence; all measured in a scale from 0 to 100 for both physical violence and stalking.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
I aim to test for heterogeneity by income, demographic characteristics and baseline declared and actual gender norms. I measure declared baseline norms through vignette-style stereotypes regarding motherhood and fatherhood, WVS questions and hypermasculinity questions. I measure actual baseline norms using time-use diaries administered to respondents.
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
the study proposes a survey experiment in which I expose participants to one of two vignettes: one is designed to elicit beliefs and attitudes regarding physical IPV, the second is designed to elicit beliefs and attitudes regarding stalking by an intimate partner. I further randomize assigning participants with equal probabilities to two conditions: one is no information, the second is information nudges taken from governmental campaigns against domestic violence.
I aim to test for heterogeneity by income, demographic characteristics and baseline declared and actual gender norms. I measure declared baseline norms through vignette-style stereotypes regarding motherhood and fatherhood, WVS questions and hypermasculinity questions. I measure actual baseline norms using time-use diaries administered to respondents.
Experimental Design Details
Not available
Randomization Method
the platform by means of which the survey is administered, using a CAWI methodology, randomly assigns respondents to each of the four conditions
Randomization Unit
the randomization is at individual level.
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
the total number of individuals is 1,000.
Sample size: planned number of observations
the total number of individuals is 1,000.
Sample size (or number of clusters) by treatment arms
• Control and physical violence: 250 individuals
• Treated and physical violence: 250 individuals
• Control and stalking: 250 individuals
• Treated and stalking: 250 individuals
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials

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IRB

Institutional Review Boards (IRBs)

IRB Name
Bioethics Committee University of Bologna
IRB Approval Date
2023-11-28
IRB Approval Number
0388055