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From individual to group predictions
Last registered on November 27, 2017

Pre-Trial

Trial Information
General Information
Title
From individual to group predictions
RCT ID
AEARCTR-0002590
Initial registration date
November 20, 2017
Last updated
November 27, 2017 10:05 AM EST
Location(s)
Region
Primary Investigator
Affiliation
IIES, Stockholm University
Other Primary Investigator(s)
PI Affiliation
Norwegian School of Economics
PI Affiliation
Norwegian School of Economics
Additional Trial Information
Status
In development
Start date
2017-11-21
End date
2018-01-17
Secondary IDs
Abstract
We have previously conducted an experiment where we nd that females have less sway in group decision making than males and in particular unprepared females have less sway than unprepared males. We do not, however, find the same gender bias between prepared males and females. This may come about because unprepared females are less con dent than
unprepared males, and thus talk less, or express their opinions in a less convincing way than their male counterparts. It could also be the case that other group members give less weight to unprepared females than unprepared males for other reasons than the behavior of the unprepared group members, where other group members nd it more problematic that women are unprepared than men either because of differences in beliefs about these two groups (statistical discrimination) or because of implicit biases or preference based discrimination.

In order to both gain knowledge about the generality of our findings from
the experiment, and in order to investigate the potential mechanisms for the observed behavior, we plan to conduct a survey experiment. This pre-analysis plan explains how we will collect data as the well as the empirical strategy for analysing these data.
External Link(s)
Registration Citation
Citation
Almas, Ingvild, Gernot Doppelhofer and Ole-Petter Hansen. 2017. "From individual to group predictions." AEA RCT Registry. November 27. https://doi.org/10.1257/rct.2590-2.0
Former Citation
Almas, Ingvild, Gernot Doppelhofer and Ole-Petter Hansen. 2017. "From individual to group predictions." AEA RCT Registry. November 27. https://www.socialscienceregistry.org/trials/2590/history/23528
Experimental Details
Interventions
Intervention(s)
Intervention Start Date
2017-11-21
Intervention End Date
2017-12-22
Primary Outcomes
Primary Outcomes (end points)
Please see pre-plan
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
Please see pre-plan
Experimental Design Details
Randomization Method
Please see pre-plan
Randomization Unit
Please see pre-plan
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
Please see pre-plan
Sample size: planned number of observations
Please see pre-plan
Sample size (or number of clusters) by treatment arms
Please see pre-plan
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
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 and Papers
Preliminary Reports
Relevant Papers