A Media Experiment to Reduce Intimate Partner Violence in Bangladesh

Last registered on September 08, 2022

Pre-Trial

Trial Information

General Information

Title
A Media Experiment to Reduce Intimate Partner Violence in Bangladesh
RCT ID
AEARCTR-0010022
Initial registration date
September 02, 2022

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
September 08, 2022, 11:24 AM 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
Stanford University

Other Primary Investigator(s)

PI Affiliation
Queen's University
PI Affiliation
University of Dhaka

Additional Trial Information

Status
In development
Start date
2022-09-19
End date
2025-08-31
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
This study aims to test whether two entertainment-based educational campaigns can: i) change social norms around the acceptability of Intimate Partner Violence (IPV) as a tool to control behaviors that are seen as undesirable (“norms campaign”); and ii) increase men’s resilience to acute stressors that may trigger violent impulses ("resilience campaign"). We expose participants to one of three versions of the same soap opera: norms campaign, resilience campaign, and placebo campaign. We further randomize whether participants are exposed to the norms or placebo campaigns privately, on a small electronic device, or publicly, in a community setting. We test: i) whether a media campaign designed to reduce the acceptability of violence reduces the prevalence of IPV (norms versus placebo); ii) whether teaching coping skills reduces the incidence of hot state violence (resilience versus placebo) and iii) whether the effects are stronger when changing beliefs about others’ beliefs about the acceptability of IPV (norms public-norms private vs placebo public-placebo private).
External Link(s)

Registration Citation

Citation
Buchmann, Nina, Paula Lopez-Pena and Atonu Rabbani. 2022. "A Media Experiment to Reduce Intimate Partner Violence in Bangladesh." AEA RCT Registry. September 08. https://doi.org/10.1257/rct.10022-1.0
Experimental Details

Interventions

Intervention(s)
See experimental design.
Intervention Start Date
2023-02-01
Intervention End Date
2024-05-31

Primary Outcomes

Primary Outcomes (end points)
Our primary outcomes are an index of attitudes towards IPV and victimization rates, measured by how often a woman has experienced violence in the past months, both in total and by type of assault.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
We propose a clustered randomized controlled trial in which we expose participants to one out of three versions of the same soap opera: The first version is designed to change social norms that justify IPV to control behaviors that are seen as undesirable (“norms campaign kit”). The second version features anger management and non-violent coping skills (“resilience campaign kit”) designed to increase men’s resilience to acute stressors that may trigger violent impulses. The third version is a placebo treatment that delivers messages unrelated to intimate partner violence (“placebo campaign kit”). We further randomize whether participants in either the norms or placebo treatments are exposed to the campaign kits privately, on a small electronic device, or publicly, in a community setting.

We aim to test for heterogeneity by income, and baseline norms. We elicit baseline norms through vignette-style stories, in which either a high- or low-income husband instructs his wife not to do a certain action, which she might or might not follow. We elicit respondents’ first- and second-order beliefs about the likelihood and social acceptability of disciplining in the case that the wife does or does not follow the husband’s instruction. This will allow us to measure community-level norms about violence. We will test for heterogeneity by these norms if we find meaningful baseline variation.
Experimental Design Details
Not available
Randomization Method
The randomization will be done using the statistical software STATA.
Randomization Unit
The randomization is at the community level.
Was the treatment clustered?
Yes

Experiment Characteristics

Sample size: planned number of clusters
The total number of clusters is 440.
Sample size: planned number of observations
The total number of observations is 8,800, or 20 per cluster.
Sample size (or number of clusters) by treatment arms
Resilience: 88 communities
Norms Private: 88 communities
Norms Public: 88 communities
Placebo Public: 88 communities
Placebo Private: 88 communities
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB

Institutional Review Boards (IRBs)

IRB Name
Stanford IRB
IRB Approval Date
2022-06-24
IRB Approval Number
IRB-51714
IRB Name
BRAC IRB
IRB Approval Date
2022-08-07
IRB Approval Number
2019-025-IR