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Field
Last Published
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Before
February 02, 2024 04:08 PM
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After
February 09, 2024 11:41 AM
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Field
Planned Number of Clusters
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Before
Based on observations from past years, we expect from 1080 to 1200 active users in the application in both January and February 2024. Given that these numbers are compatible with our power analysis, and because the actual total number of users cannot be decided in advance, we decided to run the experiment on the the whole database rather than to randomize a power-compatible pre-defined number of users into our experiment.
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After
Based on observations from past years, we expect from approximately 900 (2022) to 1200 (2023) active users in the application in both January and February 2024. Given that these numbers are compatible with our power analysis, and because the actual total number of users cannot be decided in advance, we decided to run the experiment on the the whole database rather than to randomize a power-compatible pre-defined number of users into our experiment.
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Field
Planned Number of Observations
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Before
Since the design is not clustered, the number of observations is identical to the number of clusters: from 1080 to 1200.
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After
Since the design is not clustered, the number of observations is identical to the number of clusters: from 900 to 1200.
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Field
Sample size (or number of clusters) by treatment arms
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Before
About 360 to 400 for each treatment.
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After
About 300 to 400 for each treatment.
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