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Vaccinating households against COVID-19: Experimental and Survey evidence from Zambia

Last registered on February 25, 2022

Pre-Trial

Trial Information

General Information

Title
Vaccinating households against COVID-19: Experimental and Survey evidence from Zambia
RCT ID
AEARCTR-0009027
Initial registration date
February 24, 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
February 25, 2022, 12:32 PM EST

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

Locations

Region

Primary Investigator

Affiliation

Other Primary Investigator(s)

Additional Trial Information

Status
In development
Start date
2022-02-28
End date
2022-04-30
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
This randomized survey experiment examines how to increase people's willingness to get a COVID-19 vaccine and the extent to which this is varies based on household dynamics.
External Link(s)

Registration Citation

Citation
Hoy, Christopher. 2022. "Vaccinating households against COVID-19: Experimental and Survey evidence from Zambia." AEA RCT Registry. February 25. https://doi.org/10.1257/rct.9027-1.0
Experimental Details

Interventions

Intervention(s)
Intervention Start Date
2022-02-28
Intervention End Date
2022-04-30

Primary Outcomes

Primary Outcomes (end points)
People’s willingness to get vaccinated (see survey instrument in documents)
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
Respondents will be randomly allocated to one of the following three groups:
- "vaccine effectiveness" treatment group
- "protecting household" treatment group
- control group (they receive no information)

Details are in the survey instrument, which is available in the documents section of this registration.
Experimental Design Details
Randomization Method
Randomization completed using virtual labs software.
Randomization Unit
individual
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
N/A
Sample size: planned number of observations
3000 respondents
Sample size (or number of clusters) by treatment arms
1000 respondents
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials

Documents

Document Name
Survey instrument
Document Type
survey_instrument
Document Description
File
Survey instrument

MD5: f72fa809d40148667945a7f34131a036

SHA1: de3ee8cd62a431d70b14623572468ad548803183

Uploaded At: February 24, 2022

IRB

Institutional Review Boards (IRBs)

IRB Name
IRB Approval Date
IRB Approval Number
Analysis Plan

Analysis Plan Documents

List of hypotheses

MD5: 5cce0bb16c3abdb1eefe10e795f435aa

SHA1: 146b382a29b3177dc01b133d238e036d7cb72c88

Uploaded At: February 24, 2022

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