Memory and Perceived Political Polarization - Twitter

Last registered on October 17, 2022
View Trial History

Pre-Trial

Trial Information

General Information

Title
Memory and Perceived Political Polarization - Twitter
RCT ID
AEARCTR-0010204
Initial registration date
October 13, 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
October 17, 2022, 5:22 PM EDT

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

Locations

Country
United States of America
Region

Primary Investigator

Name
Phoebe Cai
Affiliation
Harvard University
Contact Primary Investigator

Other Primary Investigator(s)

Additional Trial Information

Status
On going
Start date
2022-10-13
End date
2023-12-31
Keywords
Behavior, Electoral
Additional Keywords
Political beliefs, belief formation, polarization
JEL code(s)
Secondary IDs
Prior work
This trial is based on or builds upon one or more prior RCTs.
Abstract
I will use online experiments to study the relationship between memory of extreme political opinions and the formation of beliefs about others' political views. The experiment will involve viewing political opinions on Twitter and filling out a survey where participants are asked to estimate a quantity.
External Link(s)

Registration Citation

Citation
Cai, Phoebe. 2022. "Memory and Perceived Political Polarization - Twitter." AEA RCT Registry. October 17. https://doi.org/10.1257/rct.10204-1.0
Sponsors & Partners
Experimental Details

Interventions

Intervention(s)
Intervention Start Date
2022-10-13
Intervention End Date
2023-12-31

Primary Outcomes

Primary Outcomes (end points)
Estimate of the share of the political views seen that were from a given political party
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
I will run online experiments on Twitter that study the relationship between memory of extreme political statements and the formation of beliefs about the share of opinions that are on a given side.
Experimental Design Details
Randomization Method
Computer
Randomization Unit
Individual
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
N/A
Sample size: planned number of observations
1000 individuals (Twitter users -- 250 in each treatment arm)
Sample size (or number of clusters) by treatment arms
See attached PDF document
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials

Documents

Document Name
Summary of pre-registration and experimental design
Document Type
proposal
Document Description
Summary of pre-registration and experimental design
File
Summary of pre-registration and experimental design

MD5: 5be70dae89da114d378ecdb31648e0af

SHA1: 797946c18cefe827834ed6cca73cc361cf68ac69

Uploaded At: October 13, 2022

IRB

Institutional Review Boards (IRBs)

IRB Name
Harvard IRB
IRB Approval Date
2020-11-06
IRB Approval Number
IRB20-1742
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