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Causes and consequences of referrals
Initial registration date
May 12, 2020
May 13, 2020 3:42 PM EDT
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University of Minnesota
Other Primary Investigator(s)
Additional Trial Information
This study conducts a field experiment to understand the motivations (or causes) for making referrals and the consequences of referrals on the candidate pool using an MBA program context (i.e., alumni referrals to a program).
Treatments include a call to action message developed based on distinct motivations for making a referral, which are sent to alumni via email. Further, treatments are bundled with additional communication to the alumni that varies based on its gender saliency.
Intervention Start Date
Intervention End Date
Primary Outcomes (end points)
Key outcomes include action taken by alumni (i.e., opening email, populating form), quality of candidate (i.e., become active lead, submit application, application features if apply) and gender of the candidate (using first name).
Primary Outcomes (explanation)
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
3 X 2 design.
Experimental Design Details
Randomization using Stata; stratified by gender, degree year, age, and location.
Was the treatment clustered?
Sample size: planned number of clusters
Approximately 12,000 individuals
Sample size: planned number of observations
Sample size (or number of clusters) by treatment arms
2,000 per arm
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
INSTITUTIONAL REVIEW BOARDS (IRBs)