Age-based discrimination

Last registered on November 15, 2023
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Pre-Trial

Trial Information

General Information

Title
Age-based discrimination
RCT ID
AEARCTR-0012413
Initial registration date
November 01, 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
November 15, 2023, 12:54 PM EST

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

Locations

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Primary Investigator

Name
Jana Cahlíková
Affiliation
University of Bonn
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Other Primary Investigator(s)

PI Name
Vojtěch Bartoš
PI Affiliation
University of Milan
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PI Name
Michal Bauer
PI Affiliation
CERGE-EI and Charles University
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PI Name
Julie Chytilová
PI Affiliation
Charles University and CERGE-EI
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Additional Trial Information

Status
In development
Start date
2023-11-06
End date
2024-12-31
Keywords
Behavior
Additional Keywords
age-based discrimination, inter-generational conflict, social preferences, stereotypes
JEL code(s)
C93, D64, D91, J14
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
This project measures bias in social preferences against different age groups using a money allocation task. We also elicit stereotypes about different age-groups and test how they connect to potential biases in social preferences.
External Link(s)

Registration Citation

Citation
Bartoš, Vojtěch et al. 2023. "Age-based discrimination." AEA RCT Registry. November 15. https://doi.org/10.1257/rct.12413-1.0
Sponsors & Partners
Experimental Details

Interventions

Intervention(s)
Varying the age of the recipient in a money-allocation task. The intervention is "within-subject", i.e., participants make four decisions, towards recipient aged 18-24, 25-44, 45-64, and 65+. The decisions are presented in a random order.
Intervention Start Date
2023-11-06
Intervention End Date
2023-12-31

Primary Outcomes

Primary Outcomes (end points)
Allocations in the Help-or-Harm tasks towards recipients from different age groups. Participants make four decisions, towards recipient aged 18-24, 25-44, 45-64, and 65+.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Stereotypes towards the different age groups (18-24, 25-44, 45-64, 65+).
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
This is an online experiment. We recruit a US representative sample on Prolific (based on sex, age, and ethnicity; N=1,000). In the questionnaire, participants make decisions in a money allocation task (Help-or-Harm task). We vary the age of the recipient “within-subject”, i.e., participants make four decisions, towards recipient aged 18-24, 25-44, 45-64, and 65+. The decisions are presented in a random order. We also elicit stereotypes regarding the same age-groups.
Experimental Design Details
Not available
Randomization Method
The treatments are implemented "within-subject". The order of the decisions is randomized by Qualtrics.
Randomization Unit
The treatments are implemented within-subject.
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
1000 individuals (recruited on Prolific, representative sample of US population based on sex, age, and ethnicity)
Sample size: planned number of observations
1000 individuals (recruited on Prolific, representative sample of US population based on sex, age, and ethnicity)
Sample size (or number of clusters) by treatment arms
1000 (treatments are implemented "within-subject")
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials
IRB

Institutional Review Boards (IRBs)

IRB Name
Commission for Ethics in Research, Faculty of Social Sciences, Charles University
IRB Approval Date
2023-10-23
IRB Approval Number
Application number 87
Analysis Plan