Gender Identity and Group Contest

Last registered on October 10, 2021

Pre-Trial

Trial Information

General Information

Title
Gender Identity and Group Contest
RCT ID
AEARCTR-0008294
Initial registration date
October 09, 2021
Last updated
October 10, 2021, 9:29 PM EDT

Locations

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Primary Investigator

Affiliation
Tilburg University

Other Primary Investigator(s)

PI Affiliation
Tilburg University

Additional Trial Information

Status
In development
Start date
2021-11-01
End date
2022-06-30
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
We present an experimental design to investigate the effects of gender identity and group size on group contests. Both in the control and the experimental treatment, groups consisting of only females and males will engage in symmetric group contests (3vs3). In the experimental treatment, the gender compositions will be revealed and players will be primed by filling a gender identity survey and male-female emojis representing players. Furthermore, we will also run the same experiment in an asymmetric group contest (3vs5) setting to examine the relationship between group size and identity. Before and after the group contest, we take individual incentivized social value orientation measures to examine the degree of in-group bias created by the group contest.

External Link(s)

Registration Citation

Citation
Aktas, Usame Berk and Florian Heine. 2021. "Gender Identity and Group Contest." AEA RCT Registry. October 10. https://doi.org/10.1257/rct.8294-1.0
Sponsors & Partners

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Experimental Details

Interventions

Intervention(s)
Intervention Start Date
2021-11-01
Intervention End Date
2022-06-30

Primary Outcomes

Primary Outcomes (end points)
Individual investments, Group level investments, Social value orientation angle, Gender Identity measure
Primary Outcomes (explanation)
The social value orientation angle will be constructed with the method used Murphy et al., 2011. Gender Identity measures will be constructed from Cameron(2004).

Secondary Outcomes

Secondary Outcomes (end points)
Risk preferences
Secondary Outcomes (explanation)
Will be asked in the survey

Experimental Design

Experimental Design
Tilburg University’s participant database Sona allows us to see names and the genders of the registered participants prior to the experimental sessions. We will use this information to invite an equal amount of female and male participants. The participants will be allocated to their computers according to their treatment groups. The experiment will be programmed using z-tree by Fischbacher (2007) and conducted at the CentERlab at Tilburg University. Each participant will be sitting in a cubicle, visually separated from each other.

After general instructions, participants in the control group will be asked to fill a social value orientation survey. Afterward, they will play a trial round of a group contest and will be asked to answer few simple questions about the game. Subsequently, they will play 15 rounds of group contest games with gender-neutral emojis representing players. Afterward, they will fill a second social value orientation survey and a gender identity survey. Their payments will be determined after they filled out the demographics questionnaire.

Participants in the experimental group will be informed about the gender composition of the groups and fill a gender identity survey before the first social value orientation survey. After that, they will also play a trial round and 15 rounds of group contests. Afterward second social value orientation survey and a demographic survey will be filled.
Experimental Design Details
Not available
Randomization Method
By computer in an office
Randomization Unit
Individuals
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
Around 300 individuals
Sample size: planned number of observations
Around 300 individuals
Sample size (or number of clusters) by treatment arms
Around 300 individuals
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
We set the alpha value as 0.05.
IRB

Institutional Review Boards (IRBs)

IRB Name
TiSEM Institution Review Board (IRB)
IRB Approval Date
2020-11-24
IRB Approval Number
IRB EXE 2020-033
Analysis Plan

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