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One-sided evidence and information acquisition
Last registered on May 26, 2020

Pre-Trial

Trial Information
General Information
Title
One-sided evidence and information acquisition
RCT ID
AEARCTR-0005595
Initial registration date
May 25, 2020
Last updated
May 26, 2020 5:01 PM EDT
Location(s)
Region
Primary Investigator
Affiliation
Tilburg University
Other Primary Investigator(s)
PI Affiliation
University of Zurich
Additional Trial Information
Status
In development
Start date
2020-05-26
End date
2020-06-30
Secondary IDs
Abstract
People are often exposed to one-sided information. This paper experimentally studies how people de-bias themselves through information acquisition subsequent to their exposure to one-sided evidence.
External Link(s)
Registration Citation
Citation
Liu, Manwei and Sili Zhang. 2020. "One-sided evidence and information acquisition." AEA RCT Registry. May 26. https://doi.org/10.1257/rct.5595-1.0.
Experimental Details
Interventions
Intervention(s)
We present an issue with two mutually exclusive sides to the participants and collect their attitudes and opinions on the issue. We implement two interventions: whether subjects are initially exposed to complete or one-sided evidence on the issue and whether subsequent arguments from both sides are exogenously provided to participants or can be endogenously selected.
Intervention Start Date
2020-05-26
Intervention End Date
2020-06-30
Primary Outcomes
Primary Outcomes (end points)
Estimates of the benchmark's final attitude before and after the arguments
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Attitudes before and after the arguments; patterns of argument acquisition and evaluation.
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
The experimental design is outlined in the "Intervention" section.
Experimental Design Details
Randomization Method
Randomization will be carried out by a computer.
Randomization Unit
Individual
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
900
Sample size: planned number of observations
900
Sample size (or number of clusters) by treatment arms
150 for each treatment
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
Institutional Review Board of the Tilburg School of Economics and Management of Tilburg University
IRB Approval Date
2020-05-18
IRB Approval Number
IRB-EXE-2020009
Analysis Plan

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Post-Trial
Post Trial Information
Study Withdrawal
Intervention
Is the intervention completed?
No
Is 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