Migration narratives and attitudes towards immigration

Last registered on March 27, 2024


Trial Information

General Information

Migration narratives and attitudes towards immigration
Initial registration date
November 29, 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
November 30, 2022, 2:29 PM EST

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

Last updated
March 27, 2024, 6:29 AM EDT

Last updated is the most recent time when changes to the trial's registration were published.



Primary Investigator

HEC Montréal

Other Primary Investigator(s)

PI Affiliation
Università degli Studi Guglielmo Marconi

Additional Trial Information

Start date
End date
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
The research studies the effect of different narratives on perceptions and policy preferences towards migration among high school students in Rome. How do different narratives shape attitudes towards migrants? Are students more affected by narratives about in-group members or narratives about out-group members?
External Link(s)

Registration Citation

Florio, Erminia and Alessio Mirtini. 2024. "Migration narratives and attitudes towards immigration." AEA RCT Registry. March 27. https://doi.org/10.1257/rct.10272-2.0
Sponsors & Partners

There is information in this trial unavailable to the public. Use the button below to request access.

Request Information
Experimental Details


We will administer high school students a survey focusing on the attitudes towards immigrants. Within the survey, students in treatment groups 1 and 2 will be told a migration story (from the point of view of an Italian and an Albanian, respectively) and we will assess how the different migration perspectives shape students attitudes towards immigrants.
Intervention Start Date
Intervention End Date

Primary Outcomes

Primary Outcomes (end points)
Political preferences towards immigration and attitudes towards immigration; willingness to pay for migration charity.
Primary Outcomes (explanation)
Political preferences towards immigration are measured as: policy relevance of the immigration issue, positions on economic support to immigrants. Attitudes towards immigration: when an immigrant should be considered as country national, perception of immigration as a resource.

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
We will propose the intervention to 12 schools in southern Rome and, based on the availability of schools, we will randomly select two first-year classes in each high school to participate in the survey (around 50 students per school). Through an individual randomization at the time of survey completion, students will be divided in the three groups above mentioned: the two treatment groups and the control group.
Experimental Design Details
Randomization Method
Randomization done via survey platform the day of the intervention.
Randomization Unit
Individual randomization
Was the treatment clustered?

Experiment Characteristics

Sample size: planned number of clusters
12 schools, 2 (first year) classes per school,
Sample size: planned number of observations
600 high school students.
Sample size (or number of clusters) by treatment arms
200 students treatment 1, 200 students treatment 2, 200 students control.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Assuming average intention to repatriate (proxy for bad attitudes towards immigration) is 0.28 (sd 0.45) - we calculated these data from Florio (2022), who collects data from a similar sample of students from Rome -, power of 0.8, a Type-I error of 0.05, we are able to detect a minimum effect of 0.13 or better.

Institutional Review Boards (IRBs)

IRB Name
IRB Approval Date
IRB Approval Number


Post Trial Information

Study Withdrawal

There is information in this trial unavailable to the public. Use the button below to request access.

Request Information


Is the intervention completed?
Data Collection Complete
Data Publication

Data Publication

Is public data available?

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials