Field
Last Published
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Before
May 26, 2019 02:15 AM
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After
August 04, 2019 04:51 PM
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Field
Intervention Start Date
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Before
June 15, 2019
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After
August 04, 2019
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Field
Intervention End Date
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Before
July 31, 2019
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After
August 31, 2019
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Field
Randomization Method
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Before
Done by Qualtrics' randomization feature as the worker joins the study. The subjects will be assigned to treatments based on the blocked randomized design where a block is defined by the combination of gender, age, income, education, party and the most lived' state of the respondent.
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After
Done by Qualtrics' randomization feature as the worker joins the study. The subjects will be assigned to treatments based on the blocked randomized design where a block is defined by the combination of gender, age, income, education, party and the most lived' state of the respondent. Each white subject will be assigned to one of the ten treatments, while the black subjects will be assigned to one of the only four treatments (race salient treatments).
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Field
Planned Number of Clusters
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Before
6,000 individuals
The study will be kept open on Amazon Mechanical Turk until either 3 weeks have passed or 6,000 subjects have completed the study, whichever comes first. If three weeks pass without 6,000 subjects completing the study, then the study will be kept open (up to six weeks) until 6,000 subjects are obtained.
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After
6,000 white individuals and 2,400 black individuals
The study will be kept open on Amazon Mechanical Turk until either 3 weeks have passed or 6,000 white subjects have completed the study, whichever comes first. If three weeks pass without 6,000 white subjects completing the study, then the study will be kept open (up to six weeks) until 6,000 subjects are obtained. The study may be left open for black workers for a longer duration, just because there are not enough black workers on MTurk and it may be harder to get a representative number of black workers in that time frame.
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Field
Planned Number of Observations
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Before
6,000 individuals
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After
6,000 white individuals + 2,400 black individuals
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