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Fields Changed

Registration

Field Before After
Trial Status completed withdrawn
Trial Start Date November 20, 2019 May 01, 2023
Trial End Date December 31, 2019 June 30, 2023
Last Published July 30, 2023 02:49 AM August 15, 2023 03:08 AM
Intervention (Public) In order to avoid experimenter demand effects, we describe the study in fields that will not become public until after the experiment is over. See the pre-analysis plan for more information.
Intervention Start Date November 20, 2019 May 01, 2023
Intervention End Date December 31, 2019 June 30, 2023
Experimental Design (Public) In order to avoid experimenter demand effects, we describe the study in fields that will not become public until after the experiment is over. See the pre-analysis plan for more information.
Planned Number of Clusters 300 individuals 1000 individuals
Planned Number of Observations 300 individuals 1000 individuals
Sample size (or number of clusters) by treatment arms 150 individuals per treatment arm 500 individuals per treatment arm
Power calculation: Minimum Detectable Effect Size for Main Outcomes 0.23 of a standard deviation 0.13 of a standard deviation
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Irbs

Field Before After
IRB Name Stanford IRB Bocconi University IRB
IRB Approval Date October 04, 2019 March 31, 2023
IRB Approval Number Protocol ID: 52865 Protocol SA000597
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