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Field
Trial Status
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Before
on_going
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After
completed
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Field
Last Published
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Before
April 08, 2023 09:34 PM
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After
December 24, 2025 11:02 PM
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Field
Planned Number of Clusters
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Before
We plan to recruit 500 Berkeley students. Assuming a 20% attrition rate, we estimate that about 400 students will complete the study.
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After
We plan to recruit 500 Berkeley students. Assuming a 20% attrition rate, we estimate that about 400 students will complete the study.
In a second round of the experiment, we make a minor modification to the information treatment, while keeping the rest of the design unchanged. We plan to recruit an additional 400 students for this round. Assuming a 20% attrition rate, we estimate that about 320 students will complete this round.
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Field
Planned Number of Observations
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Before
Recruit 500 students, estimate that we will have 400 observations in the endline.
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After
In the main round: recruit 500 students, estimate that we will have 400 observations in the endline.
In the additional round: recruit 400 students, estimate that we will have 320 observations in the endline.
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Field
Sample size (or number of clusters) by treatment arms
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Before
We will recruit 50 first-movers, 225 students in the control group and 225 students in the treatment group.
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After
In the main round, we will recruit 50 first-movers, 225 students in the control group and 225 students in the treatment group.
In the additional round: we will recruit 50 first-movers, 175 students in the control group and 175 students in the treatment group.
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