Intergroup interaction and attitudes to migrants
Last registered on January 10, 2020

Pre-Trial

Trial Information
General Information
Title
Intergroup interaction and attitudes to migrants
RCT ID
AEARCTR-0005228
Initial registration date
January 07, 2020
Last updated
January 10, 2020 11:21 AM EST
Location(s)

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Primary Investigator
Affiliation
Norwegian School of Economics
Other Primary Investigator(s)
Additional Trial Information
Status
In development
Start date
2020-01-13
End date
2020-02-28
Secondary IDs
Abstract
There are an estimated quarter of a billion international migrants in the world, and the number has been increasing over recent decades. Positive effects of migrants on receiving communities have been documented. However, migration can also be associated with social tension and conflict. To address these types of negative dynamics related to migration, it is important to understand how attitudes towards migrants form and evolve, and what measures can be taken to reduce the risk of conflict between host communities and migrants. Inter-group contact theory posits that interaction between members of distinct groups can reduce inter-group bias and discrimination, and improve relations. One way to potentially improve attitudes is hence through increased interaction between host community residents and migrants. We conduct a randomized field experiment which studies the effects of interaction with migrants on host community attitudes towards them.
External Link(s)
Registration Citation
Citation
Kolstad, Ivar. 2020. "Intergroup interaction and attitudes to migrants." AEA RCT Registry. January 10. https://doi.org/10.1257/rct.5228-1.0.
Experimental Details
Interventions
Intervention(s)
Intervention Start Date
2020-01-13
Intervention End Date
2020-02-28
Primary Outcomes
Primary Outcomes (end points)
Attitude to migrants
Primary Outcomes (explanation)
Please see attached pre-analysis plan for details.
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
Randomized field experiment.
Experimental Design Details
Not available
Randomization Method
Randomization by computer.
Randomization Unit
Individual
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
Not clustered
Sample size: planned number of observations
600 individuals
Sample size (or number of clusters) by treatment arms
120 per group
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
IRB Approval Date
IRB Approval Number
Analysis Plan

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