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NEW UPDATE: Completed trials may now upload and register supplementary documents (e.g. null results reports, populated pre-analysis plans, or post-trial results reports) in the Post Trial section under Reports, Papers, & Other Materials.
Risky Mistakes and Revisions
Last registered on July 14, 2020

Pre-Trial

Trial Information
General Information
Title
Risky Mistakes and Revisions
RCT ID
AEARCTR-0004572
Initial registration date
August 12, 2019
Last updated
July 14, 2020 2:09 AM EDT
Location(s)
Region
Primary Investigator
Affiliation
The University of Queensland
Other Primary Investigator(s)
PI Affiliation
Johns Hopkins University
Additional Trial Information
Status
Completed
Start date
2019-08-19
End date
2019-09-30
Secondary IDs
Abstract
This project instead focuses on “mistakes” as a potential explanation for behavior which appears to be random. We study the conditions under which mistakes are made and when people correct them.
External Link(s)
Registration Citation
Citation
Breig, Zachary and Paul Feldman. 2020. "Risky Mistakes and Revisions." AEA RCT Registry. July 14. https://doi.org/10.1257/rct.4572-1.1.
Former Citation
Breig, Zachary, Zachary Breig and Paul Feldman. 2020. "Risky Mistakes and Revisions." AEA RCT Registry. July 14. http://www.socialscienceregistry.org/trials/4572/history/72425.
Experimental Details
Interventions
Intervention(s)
We allow subjects to make choices, then later allow them to revise these decisions.
Intervention Start Date
2019-08-19
Intervention End Date
2019-09-30
Primary Outcomes
Primary Outcomes (end points)
Outcomes include revision rates, revision amounts, Afriatindices, Houtman-Maks indices, and estimated utility outcomes.
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
Subjects will first make a series of choices from convex budget sets. They will later be able to revise those choices.
Experimental Design Details
Full details are given in the attached pre-analysis plan.
Randomization Method
Randomization will be done by a computer.
Randomization Unit
It is a within design, so the order of treatments will be randomized at the subject level.
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
160-200
Sample size: planned number of observations
Each subject makes 50 original choices and has the chance to revise 36 of those choices.
Sample size (or number of clusters) by treatment arms
Of the revised choices, 6 have no reminder and are made in isolation, 6 have the reminder and are made in isolation, 12 have no reminder and are made two at a time, and 12 have a reminder and are made two at a time.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Power calculations can be found in the attached pre-analysis plan.
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
University of Queensland Business, Economics and Law Human Research Ethics Committee
IRB Approval Date
2019-04-16
IRB Approval Number
2019000733
Analysis Plan
Analysis Plan Documents
Pre-Analysis Plan

MD5: 521c19c9ee16ed1e61226c5c502803c2

SHA1: 26c2afa98cc5a84027ae67c25b1f54ac461cd3ed

Uploaded At: August 12, 2019

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