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Attributing intentions under projection bias
Last registered on July 20, 2017

Pre-Trial

Trial Information
General Information
Title
Attributing intentions under projection bias
RCT ID
AEARCTR-0002310
Initial registration date
July 06, 2017
Last updated
July 20, 2017 8:20 AM EDT
Location(s)
Region
Primary Investigator
Affiliation
Norwegian School of Economics
Other Primary Investigator(s)
Additional Trial Information
Status
Completed
Start date
2015-08-27
End date
2015-09-04
Secondary IDs
Abstract
We experimentally test whether holders of different internalized norms interpret intentions of others actions in systematically different ways due to projection bias; the systematic tendency to overestimate the commonness of ones own preferences among in-group members. Since one typically cannot observe people's internalized norms, the strength of their social preferences or their monetary incentives, inferring intentions from actions is a multidimensional inference problem. This study seeks to study this problem by investigating intention attribution in a setting where the monetary incentives are known: a redistribution choice of voting for either full redistribution or no redistribution. Individuals with above median income will have monetary incentives for no redistribution and individuals below median income will have monetary incentives for full redistribution. In this setting, we study intention attribution in groups with heterogeneous internalized distributive norms. We develop a simple model of inference of intentions to show that a systematic misattribution of intentions can arise from participants overestimating the prevalence of their own fairness view, projection bias, and explore whether there is evidence for this in the experimental data.
External Link(s)
Registration Citation
Citation
Schøyen, Øivind. 2017. "Attributing intentions under projection bias." AEA RCT Registry. July 20. https://doi.org/10.1257/rct.2310-2.0.
Former Citation
Schøyen, Øivind. 2017. "Attributing intentions under projection bias." AEA RCT Registry. July 20. http://www.socialscienceregistry.org/trials/2310/history/19676.
Experimental Details
Interventions
Intervention(s)
Intervention Start Date
2015-08-28
Intervention End Date
2015-09-03
Primary Outcomes
Primary Outcomes (end points)
NA/See Pre-analysis plan
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
NA/See Pre-analysis plan
Experimental Design Details
NA/See Pre-analysis plan
Randomization Method
Coin flip, computer
Randomization Unit
NA/See Pre-analysis plan
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
NA/See Pre-analysis plan
Sample size: planned number of observations
NA/See Pre-analysis plan
Sample size (or number of clusters) by treatment arms
NA/See Pre-analysis plan
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
NA/See Pre-analysis plan
Supporting Documents and Materials

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IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
IRB Approval Date
IRB Approval Number
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