Diversity and teamwork in random groups.

Last registered on November 29, 2022

Pre-Trial

Trial Information

General Information

Title
Diversity and teamwork in random groups.
RCT ID
AEARCTR-0009918
Initial registration date
August 18, 2022

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
September 19, 2022, 4:31 PM EDT

First published corresponds to when the trial was first made public on the Registry after being reviewed.

Last updated
November 29, 2022, 12:18 PM EST

Last updated is the most recent time when changes to the trial's registration were published.

Locations

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Primary Investigator

Affiliation

Other Primary Investigator(s)

PI Affiliation
University of Pennsylvania

Additional Trial Information

Status
In development
Start date
2022-08-30
End date
2023-01-31
Secondary IDs
Prior work
This trial is based on or builds upon one or more prior RCTs.
Abstract
We implement a field experiment on team diversity in an undergraduate class of introductory Economics. Small groups with random compositions are generated, and they are assigned several common tasks. We study the impact of a multidimensional measure of diversity based on gender, race, migration status and socio-economic background on collaboration, group dynamics and group performance, with a focus on in-group and out-group dynamics. We further analyse individual impacts such as individual performance in the class, aspirations, and general student well-being. Finally, we investigate optimal group composition according to performance and other welfare functions including non-cognitive outcomes.
External Link(s)

Registration Citation

Citation
Darova, Ornella and Anne Duchene. 2022. "Diversity and teamwork in random groups.." AEA RCT Registry. November 29. https://doi.org/10.1257/rct.9918-1.1
Experimental Details

Interventions

Intervention(s)
We implement a field experiment on team diversity in an undergraduate class of introductory Economics. Small groups with random compositions are generated, and they are assigned several common tasks that are a relevant part of the class and of their learning process. We study the impact of a multidimensional measure of diversity based on gender, race, migration status and socio-economic background on collaboration, group dynamics and group performance, with a focus on in-group and out-group dynamics. We further analyse individual impacts such as individual performance in the class, aspirations, and general student well-being. Finally, we investigate optimal group composition according to performance and other welfare functions including non-cognitive outcomes.
Intervention Start Date
2022-08-30
Intervention End Date
2023-01-31

Primary Outcomes

Primary Outcomes (end points)
We study the impact of a multidimensional measure of diversity based on gender, race, migration status and socio-economic background on collaboration, group dynamics and group performance. We use class scores, group tasks assignments and self-reported measures of group collaboration, conflict, beliefs on other group members, free riding, work burden distribution among group members.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
We further analyse individual impacts such as individual performance in the class, aspirations, and general student well-being. We use grades, students' educational choices on further classes in Economics and on their majors, self-reported measures of aspirations, feeling welcome, self-esteem. We moreover analyse the impact of diversity and the presence of URMs in groups on students' beliefs on others' abilities.
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
We implement a field experiment on team diversity in an undergraduate class of introductory Economics. Each student is randomly assigned to a small group of students. As a result, each student is exposed to a random intensity of group diversity.
Experimental Design Details
Not available
Randomization Method
Randomisation done in office by a computer.
Randomization Unit
Student.
Was the treatment clustered?
Yes

Experiment Characteristics

Sample size: planned number of clusters
About 150-200 groups.
Sample size: planned number of observations
About 600 students.
Sample size (or number of clusters) by treatment arms
The measure of diversity (a continuous variable) going to each working group is drawn from a normal distribution in this experimental design.
Each student is exposed to a random level of multidimensional diversity as a result of the random composition of the group they are assigned to. Groups can span from very homogeneous (similar individuals in terms of gender, race/ethnicity and socio-economic background), to very heterogeneous.

Taking a low degree of diversity as being the control arm, we have 300 observations (about 75-100 groups) in the control arm and 300 observations (about 75-100 groups) in the treatment arm.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB

Institutional Review Boards (IRBs)

IRB Name
University of Pennsylvania Institutional Review Board
IRB Approval Date
2021-12-03
IRB Approval Number
850326
Analysis Plan

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