Discrimination Against Persons with Disabilities in Recruitment: A Correspondence Study

Last registered on March 12, 2026

Pre-Trial

Trial Information

General Information

Title
Discrimination Against Persons with Disabilities in Recruitment: A Correspondence Study
RCT ID
AEARCTR-0018038
Initial registration date
March 10, 2026

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
March 12, 2026, 4:28 AM EDT

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

Locations

Region

Primary Investigator

Affiliation
Institute for Structural Research

Other Primary Investigator(s)

PI Affiliation
Institute for Structural Research (IBS)
PI Affiliation
Institute for Structural Research (IBS)
PI Affiliation
Institute for Structural Research (IBS)

Additional Trial Information

Status
In development
Start date
2026-03-17
End date
2026-10-31
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
This study aims to estimate the extent of discrimination against people with disabilities in recruitment in Poland. We will use a correspondence testing method, which allows for the assessment of discriminatory behavior under real market conditions. In this experiment, we will send pairs of fictitious job applications in response to real vacancy postings. One applicant will signal a disability, while the other will not. The applications will be otherwise comparable in terms of professional experience, educational qualifications, and skills.
External Link(s)

Registration Citation

Citation
Jusypenko, Bartosz et al. 2026. "Discrimination Against Persons with Disabilities in Recruitment: A Correspondence Study." AEA RCT Registry. March 12. https://doi.org/10.1257/rct.18038-1.0
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Experimental Details

Interventions

Intervention(s)
Intervention Start Date
2026-03-17
Intervention End Date
2026-09-30

Primary Outcomes

Primary Outcomes (end points)
Callback rate
Primary Outcomes (explanation)
We will measure several variants of the callback rate based on responses received via email or phone voicemail:

1. Explicit positive response from the employer (e.g., an invitation to an interview or to the next stage of the recruitment process)
2.Other response from the employer (e.g., a request for additional information)
3. Any response from the employer (e.g., a phone call without follow‑up information)
4. Explicit rejection
5. No response

For applicants with and without disabilities, we will report all outcomes separately, as well as in an aggregated form, coded as positive (categories 1–3) or negative (categories 4–5).

We will also measure heterogeneity by applicant gender, occupation type, and firm type..

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
We will use the job database provided by the Public Employment Services in Poland to identify office based job openings in large cities (with more than 100 000 inhabitants). The selected occupations will include office clerks, accountants and financial specialists, financial and business data analysts, and marketing and PR specialists. For each job posting, we will email two CVs from candidates with comparable characteristics (age, education, work experience, and skills). One candidate will indicate a disability (wheelchair user), and the other will not.
Experimental Design Details
Not available
Randomization Method
Randomization done by a computer
Randomization Unit
Job offer. For each job offer, the gender of the candidate pair will be randomized. Disability status, CV template, and CV content will also be randomly assigned.
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
No clustering is planned
Sample size: planned number of observations
1000 CVs emailed to 500 job openings
Sample size (or number of clusters) by treatment arms
500 applications from candidates with disability
500 applications from candidates without disability
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB

Institutional Review Boards (IRBs)

IRB Name
IBS & CENEA Research Ethics Committee on the Evaluation of the Application for Conducting a Scientific Study
IRB Approval Date
2026-03-01
IRB Approval Number
4/2026