Field
Trial Start Date
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Before
December 16, 2016
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After
December 17, 2016
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Field
Last Published
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Before
December 15, 2016 03:05 PM
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After
December 16, 2016 11:05 PM
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Field
Intervention Start Date
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Before
December 16, 2016
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After
December 17, 2016
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Field
Experimental Design (Public)
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Before
Laboratory experiment plus MTurk experiment.
There are 6 treatment arms in a 3x2 design, combining 3 different types of messages with 2 "new products". Full details in pre-analysis plan registered with OSF.
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After
Laboratory experiment plus MTurk experiment.
There are 9 treatment arms in a 3x3 design, combining 3 different types of messages with 2 "new products" + 1 absence of a new product. Full details in pre-analysis plan registered with OSF.
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Field
Planned Number of Clusters
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Before
600 laboratory subjects
1,200 MTurk subjects
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After
800 laboratory subjects
1,800 MTurk subjects
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Field
Planned Number of Observations
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Before
600 laboratory subjects
1,200 MTurk subjects
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After
800 laboratory subjects
1,800 MTurk subjects
|
Field
Sample size (or number of clusters) by treatment arms
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Before
200 to each of the 6 groups for MTurk
For laboratory experiment, 200 health messaging - new product 1, 100 health messaging - new product 2, 200 ethical messaging - new product 1, 100 ethical messaging - new product 2. This is to allow for a further subdivision amongst those who receive information about new product 1 for a separate paper (which will have its own pre-registration and pre-analysis plan).
|
After
200 to each of the 9 groups for MTurk
For laboratory experiment, 200 health messaging - new product 1, 100 health messaging - new product 2, 100 health messaging - no new product, 200 ethical messaging - new product 1, 100 ethical messaging - new product 2, 100 ethical messaging - no new product. The extra weight on new product 1 is to allow for a further subdivision amongst those who receive information about new product 1 for a separate paper (which will have its own pre-registration and pre-analysis plan).
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