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Effect of a short term contact intervention on inter-ethnic trust in Senegal

Last registered on February 24, 2022
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Pre-Trial

Trial Information

General Information

Title
Effect of a short term contact intervention on inter-ethnic trust in Senegal
RCT ID
AEARCTR-0008964
Initial registration date
February 24, 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
February 24, 2022, 1:53 PM EST

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

Locations

Country
Senegal
Region
Saint Louis

Primary Investigator

Name
Gwen-Jiro Clochard
Affiliation
Institute of Social and Economic Research - Osaka University
Contact Primary Investigator

Other Primary Investigator(s)

PI Name
Guillaume Hollard
PI Affiliation
CREST - Ecole polytechnique - CNRS
Contact Investigator
PI Name
Omar Sene
PI Affiliation
University Alioune Diop in Bambey
Contact Investigator

Additional Trial Information

Status
In development
Start date
2022-02-26
End date
2022-03-31
Keywords
Behavior, Crime, Violence, & Conflict, Post-conflict, Welfare
Additional Keywords
Contact hypothesis, trust
JEL code(s)
C92, C93
Secondary IDs
Prior work
This trial is based on or builds upon one or more prior RCTs.
Abstract
We are conducting a lab-in-the-field experiment in Senegal to test the effects of a brief contact on inter-ethnic trust.
External Link(s)

Registration Citation

Citation
Clochard, Gwen-Jiro, Guillaume Hollard and Omar Sene. 2022. "Effect of a short term contact intervention on inter-ethnic trust in Senegal." AEA RCT Registry. February 24. https://doi.org/10.1257/rct.8964-1.0
Sponsors & Partners
Experimental Details

Interventions

Intervention(s)
Short-term contact, adapted from Aron et al. (1997)'s "fast-friend" procedure.
Intervention (Hidden)
Intervention Start Date
2022-02-26
Intervention End Date
2022-03-06

Primary Outcomes

Primary Outcomes (end points)
Trust game + measure of prejudice towards the entire outgroup
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Measures of declared trust one month after the experiment
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
See Pre-Analysis Plan
Experimental Design Details
Randomization Method
Randomly assigned based on order of arrival (1 to treatment 1, 2 to treatment 2, 3 to treatment 1, etc...)
Randomization Unit
Individual
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
700
Sample size: planned number of observations
700
Sample size (or number of clusters) by treatment arms
150 per treatment
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
0.23
Supporting Documents and Materials
IRB

Institutional Review Boards (IRBs)

IRB Name
Institut Louis Bachelier IRB (IRB00013336)
IRB Approval Date
2022-02-21
IRB Approval Number
IRB00013336-2022-01
Analysis Plan

Analysis Plan Documents

Contact_Senegal_PAP.pdf

MD5: 1d031bc79e6ccd2d0ae45b97a8614879

SHA1: 9d97b02d79d2cd2caff67b60abe5bf3733ef696f

Uploaded At: February 24, 2022

Post-Trial

Post Trial Information

Study Withdrawal

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Intervention

Is the intervention completed?
No
Data Collection Complete
Data Publication

Data Publication

Is public data available?
No

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials