Free choice of migration : a vignette survey experiment on Lebanese students

Last registered on June 26, 2023
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Pre-Trial

Trial Information

General Information

Title
Free choice of migration : a vignette survey experiment on Lebanese students
RCT ID
AEARCTR-0011280
Initial registration date
April 17, 2023

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
April 18, 2023, 5:19 PM EDT

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

Last updated
June 26, 2023, 8:45 AM EDT

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

Locations

Country
Lebanon
Region

Primary Investigator

Name
Eliane El Badaoui
Affiliation
University Paris Nanterre
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Other Primary Investigator(s)

PI Name
Rosette Ghossoub Sayegh
PI Affiliation
Saint Joseph University
Contact Investigator
PI Name
Maïssam Nimer
PI Affiliation
University of Istanbul
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PI Name
Elisabeth Tovar
PI Affiliation
University Paris Nanterre
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Additional Trial Information

Status
Completed
Start date
2023-04-18
End date
2023-05-06
Keywords
Other
Additional Keywords
migration, free choice, Lebanon, vignette study, survey experiment
JEL code(s)
C83, C99, F22
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
This study investigates the opinion of Lebanese students on free nature of migration decisions. Using a vignette experiment, we explore the causal effects of i) the context of the decision, ii) how the worsening of the agent’s situation is defined, iii) peer effects and iv) the altruistic inclusion of other’s outcomes by the agent. Using an individual post-vignette survey, we explore the association of the perception of respondents on the free nature of migration with their sociodemographic characteristics and attitudinal opinions.
External Link(s)

Registration Citation

Citation
El Badaoui, Eliane et al. 2023. "Free choice of migration : a vignette survey experiment on Lebanese students." AEA RCT Registry. June 26. https://doi.org/10.1257/rct.11280-3.0
Sponsors & Partners

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Experimental Details

Interventions

Intervention(s)
The vignette survey experiment will be completed in paper format by Lebanese university students, during one of their classes, in the presence of their teacher. Respondents will not be incentivized.
Intervention Start Date
2023-04-18
Intervention End Date
2023-05-06

Primary Outcomes

Primary Outcomes (end points)
Attitudinal opinion on the free nature of migration of the hypothetical agent described in the vignette on a 7-point scale.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
Each vignette consists of a short description of a hypothetical migration situation. Respondents will be asked on the free nature of the migration of the agent.

The factors included in the vignette design echo major migration determinants : context of the decision, worsening of the agent’s situation, peer effects and altruism.

Each student will randomly be assigned 1 version out of the 16 possible versions of the vignette.

After the vignette, a post-experimental individual survey collects information on sociodemographic characteristics and opinions.
Experimental Design Details
Randomization Method
Each individual respondent will randomly receive a version of the vignette among the pool of 16 alternative versions of the vignette.
Randomization Unit
Randomization unit is each individual student.
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
No clustering of treatments.
Sample size: planned number of observations
1600 individual observations (students).
Sample size (or number of clusters) by treatment arms
Approximately 100 students.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Estimated number of respondents by version is about 100. This is consistent with an acceptable predictive power (5 % significance level, 80 % power and medium size effects, h=0,5).
Supporting Documents and Materials

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IRB

Institutional Review Boards (IRBs)

IRB Name
Saint Joseph University IRB
IRB Approval Date
2023-04-04
IRB Approval Number
USJ 2022-18
IRB Name
CNRS IRB
IRB Approval Date
2023-04-14
IRB Approval Number
CNRS DPD/2023-001
Analysis Plan

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